Commit Graph

242 Commits

Author SHA1 Message Date
mtklein
9db912c2ac Sketch splitting SkPicture into an interface and SkBigPicture.
Adds small pictures for drawRect(), drawTextBlob(), and drawPath().
These cover about 89% of draw calls from Blink SKPs,
and about 25% of draw calls from our GMs.

SkPicture handles:
  - serialization and deserialization
  - unique IDs

Everything else is left to the subclasses:
  - playback(), cullRect()
  - hasBitmap(), hasText(), suitableForGPU(), etc.
  - LayerInfo / AccelData if applicable.

The time to record a 1-op picture improves a good chunk
(2 mallocs to 1), and the time to record a 0-op picture
greatly improves (2 mallocs to none):

    picture_overhead_draw:   450ns -> 350ns
    picture_overhead_nodraw: 300ns -> 90ns

BUG=skia:

Committed: https://skia.googlesource.com/skia/+/c92c129ff85b05a714bd1bf921c02d5e14651f8b

Latest blink_linux_rel:

http://build.chromium.org/p/tryserver.blink/builders/linux_blink_rel/builds/61248

Committed: https://skia.googlesource.com/skia/+/15877b6eae33a9282458bdb904a6d00440eca0ec

http://build.chromium.org/p/tryserver.blink/builders/linux_blink_rel/builds/62015

Review URL: https://codereview.chromium.org/1112523006
2015-05-19 11:11:26 -07:00
mtklein
72743b1654 Revert of Sketch splitting SkPicture into an interface and SkBigPicture. (patchset #25 id:480001 of https://codereview.chromium.org/1112523006/)
Reason for revert:
win_chromium_compile_dbg_ng

FAILED: ninja -t msvc -e environment.x86 -- E:\b\build\goma/gomacc "E:\b\depot_tools\win_toolchain\vs2013_files\VC\bin\amd64_x86\cl.exe" /nologo /showIncludes /FC @obj\third_party\skia\src\core\skia.SkBitmapHeap.obj.rsp /c ..\..\third_party\skia\src\core\SkBitmapHeap.cpp /Foobj\third_party\skia\src\core\skia.SkBitmapHeap.obj /Fdobj\skia\skia.cc.pdb
e:\b\build\slave\win\build\src\third_party\skia\include\core\skpicture.h(176) : error C2487: 'CURRENT_PICTURE_VERSION' : member of dll interface class may not be declared with dll interface

Original issue's description:
> Sketch splitting SkPicture into an interface and SkBigPicture.
>
> Adds small pictures for drawRect(), drawTextBlob(), and drawPath().
> These cover about 89% of draw calls from Blink SKPs,
> and about 25% of draw calls from our GMs.
>
> SkPicture handles:
>   - serialization and deserialization
>   - unique IDs
>
> Everything else is left to the subclasses:
>   - playback(), cullRect()
>   - hasBitmap(), hasText(), suitableForGPU(), etc.
>   - LayerInfo / AccelData if applicable.
>
> The time to record a 1-op picture improves a good chunk
> (2 mallocs to 1), and the time to record a 0-op picture
> greatly improves (2 mallocs to none):
>
>     picture_overhead_draw:   450ns -> 350ns
>     picture_overhead_nodraw: 300ns -> 90ns
>
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/c92c129ff85b05a714bd1bf921c02d5e14651f8b
>
> Latest blink_linux_rel:
>
> http://build.chromium.org/p/tryserver.blink/builders/linux_blink_rel/builds/61248
>
> Committed: https://skia.googlesource.com/skia/+/15877b6eae33a9282458bdb904a6d00440eca0ec

TBR=reed@google.com,robertphillips@google.com,fmalita@chromium.org,mtklein@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/1130283004
2015-05-18 14:53:43 -07:00
mtklein
15877b6eae Sketch splitting SkPicture into an interface and SkBigPicture.
Adds small pictures for drawRect(), drawTextBlob(), and drawPath().
These cover about 89% of draw calls from Blink SKPs,
and about 25% of draw calls from our GMs.

SkPicture handles:
  - serialization and deserialization
  - unique IDs

Everything else is left to the subclasses:
  - playback(), cullRect()
  - hasBitmap(), hasText(), suitableForGPU(), etc.
  - LayerInfo / AccelData if applicable.

The time to record a 1-op picture improves a good chunk
(2 mallocs to 1), and the time to record a 0-op picture
greatly improves (2 mallocs to none):

    picture_overhead_draw:   450ns -> 350ns
    picture_overhead_nodraw: 300ns -> 90ns

BUG=skia:

Committed: https://skia.googlesource.com/skia/+/c92c129ff85b05a714bd1bf921c02d5e14651f8b

Latest blink_linux_rel:

http://build.chromium.org/p/tryserver.blink/builders/linux_blink_rel/builds/61248

Review URL: https://codereview.chromium.org/1112523006
2015-05-18 13:47:17 -07:00
mtklein
c30806f9f1 Perform SkPicture analysis lazily.
I realized when writing the comment on https://crrev.com/1135363002/
that I'd really just sketched out the entire thing, so I couldn't help
but actually write up a working CL.  How does this do for your benchmark?

BUG=chromium:487075

Review URL: https://codereview.chromium.org/1130123006
2015-05-13 19:26:14 -07:00
reed
b7ed856fad Revert of Sketch splitting SkPicture into an interface and SkBigPicture. (patchset #22 id:420001 of https://codereview.chromium.org/1112523006/)
Reason for revert:
speculative revert to fix failures in DEPS roll

Original issue's description:
> Sketch splitting SkPicture into an interface and SkBigPicture.
>
> Adds small pictures for drawRect(), drawTextBlob(), and drawPath().
> These cover about 89% of draw calls from Blink SKPs,
> and about 25% of draw calls from our GMs.
>
> SkPicture handles:
>   - serialization and deserialization
>   - unique IDs
>
> Everything else is left to the subclasses:
>   - playback(), cullRect()
>   - hasBitmap(), hasText(), suitableForGPU(), etc.
>   - LayerInfo / AccelData if applicable.
>
> The time to record a 1-op picture improves a good chunk
> (2 mallocs to 1), and the time to record a 0-op picture
> greatly improves (2 mallocs to none):
>
>     picture_overhead_draw:   450ns -> 350ns
>     picture_overhead_nodraw: 300ns -> 90ns
>
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/c92c129ff85b05a714bd1bf921c02d5e14651f8b

TBR=reed@google.com,robertphillips@google.com,mtklein@google.com,mtklein@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/1130333002
2015-05-07 17:30:13 -07:00
mtklein
c92c129ff8 Sketch splitting SkPicture into an interface and SkBigPicture.
Adds small pictures for drawRect(), drawTextBlob(), and drawPath().
These cover about 89% of draw calls from Blink SKPs,
and about 25% of draw calls from our GMs.

SkPicture handles:
  - serialization and deserialization
  - unique IDs

Everything else is left to the subclasses:
  - playback(), cullRect()
  - hasBitmap(), hasText(), suitableForGPU(), etc.
  - LayerInfo / AccelData if applicable.

The time to record a 1-op picture improves a good chunk
(2 mallocs to 1), and the time to record a 0-op picture
greatly improves (2 mallocs to none):

    picture_overhead_draw:   450ns -> 350ns
    picture_overhead_nodraw: 300ns -> 90ns

BUG=skia:

Review URL: https://codereview.chromium.org/1112523006
2015-05-07 13:41:07 -07:00
mtklein
2420e10d5a Straighten out SkPicture::AccelData APIs.
Must have been we needed them to be weird (mutable, const setter) before.
It doesn't look like that's necessary now... we can just pass it to the
constructor.

BUG=skia:

Review URL: https://codereview.chromium.org/1112833003
2015-04-29 08:16:50 -07:00
mtklein
00c2af8b73 Reduce ref counting in SkPictureRecorder.
This may be a small help to slimming paint:

  picture_overhead_draw 1.25us -> 1.22us    0.98x
  picture_overhead_nodraw    318ns ->  276ns    0.87x

It certainly cannot hurt performance.

BUG=chromium:470553

TBR=reed@google.com
No public API changes.

Review URL: https://codereview.chromium.org/1098183003
2015-04-27 08:54:23 -07:00
jbroman
de8667b81f Reduce sizeof(SkPicture::Analysis) from 24 bytes to 2 bytes.
This saves "up to" 22 bytes per SkPicture.

Due to alignment, this reduces sizeof(SkPicture):
- from 88 to 72 bytes on Linux x64
- from 68 to 48 bytes on Android
(with Chrome's build settings)

It also somewhat simplifies the GPU veto logic.

BUG=skia:

[mtklein] No public API changes.
TBR=reed@google.com

Review URL: https://codereview.chromium.org/1060863004
2015-04-27 07:55:34 -07:00
robertphillips
91df6c273a Fix some lingering typos
Review URL: https://codereview.chromium.org/1101293003
2015-04-24 11:10:51 -07:00
mtklein
98b8485a4c O(1) SkPictureUtils::ApproxBytesUsed()
Chrome wants to call this more often, and it's quite slow today.

Seems like this could be clearer if SkPictureUtils::ApproxBytesUsed() were SkPicture::approxBytesUsed().

BUG=chromium:471873

Review URL: https://codereview.chromium.org/1090943004
2015-04-21 15:24:00 -07:00
bungeman
9d911d5a93 Remove filename from SkFontDescriptor.
No one actually uses it, so remove it. Keep the string id for backward
compatibility.

TBR=reed@google.com
This doesn't change any public API.

Review URL: https://codereview.chromium.org/1057413005
2015-04-17 11:00:06 -07:00
robertphillips
25c40d25d7 Add serialization of SkBitmapSource's new filterQuality member variable
Missed this in https://codereview.chromium.org/1072603002/ (Add GM to repro crbug.com/472795)

Review URL: https://codereview.chromium.org/1078113002
2015-04-10 08:39:58 -07:00
mtklein
e35268ef4c Send SkPicture deletion message lazily.
If no one has read the picture's unique ID, there's no point invalidating it.

This is the same trick we pull with SkPixelRefs.

Before:
  26M	1	1.49µs	1.6µs	1.77µs	6.25µs	42%	picture_overhead_draw
  13M	32	742ns	749ns	756ns	823ns	2%	picture_overhead_nodraw

After:
  26M	1	1.27µs	1.33µs	1.49µs	5.51µs	45%	picture_overhead_draw
  14M	43	677ns	680ns	681ns	701ns	1%	picture_overhead_nodraw

BUG=skia:

Review URL: https://codereview.chromium.org/1061283002
2015-04-07 06:34:05 -07:00
senorblanco
4a22a433bf Bump picture version for uniqueID-less SkImageFilter.
Remove writing of the uniqueID, and put reading behind a version check.

BUG=skia:3559

Review URL: https://codereview.chromium.org/1010433003
2015-03-18 13:14:54 -07:00
halcanary
8c92dc1dc2 Remove unused parameters to SkDocument::CreatePDF
All image compression currently uses (losseless) Deflate, not Jpeg.

All clients simply use SkDocument::CreatePDF(stream).

SampleApp and SkLua still use SkDocument::CreatePDF(path).

Review URL: https://codereview.chromium.org/935843007
2015-02-19 18:50:05 -08:00
reed
9e447c08de remove unneeded preroll
BUG=skia:
TBR=robertphilips

Review URL: https://codereview.chromium.org/927443006
2015-02-15 11:08:40 -08:00
reed
96a857ef5a initial preroll api
BUG=skia:

Review URL: https://codereview.chromium.org/855473002
2015-01-25 10:33:58 -08:00
scroggo
a1193e4b0e Make SkStream *not* ref counted.
SkStream is a stateful object, so it does not make sense for it to have
multiple owners. Make SkStream inherit directly from SkNoncopyable.

Update methods which previously called SkStream::ref() (e.g.
SkImageDecoder::buildTileIndex() and SkFrontBufferedStream::Create(),
which required the existing owners to call SkStream::unref()) to take
ownership of their SkStream parameters and delete when done (including
on failure).

Switch all SkAutoTUnref<SkStream>s to SkAutoTDelete<SkStream>s. In some
cases this means heap allocating streams that were previously stack
allocated.

Respect ownership rules of SkTypeface::CreateFromStream() and
SkImageDecoder::buildTileIndex().

Update the comments for exceptional methods which do not affect the
ownership of their SkStream parameters (e.g.
SkPicture::CreateFromStream() and SkTypeface::Deserialize()) to be
explicit about ownership.

Remove test_stream_life, which tested that buildTileIndex() behaved
correctly when SkStream was a ref counted object. The test does not
make sense now that it is not.

In SkPDFStream, remove the SkMemoryStream member. Instead of using it,
create a new SkMemoryStream to pass to fDataStream (which is now an
SkAutoTDelete).

Make other pdf rasterizers behave like SkPDFDocumentToBitmap.

SkPDFDocumentToBitmap delete the SkStream, so do the same in the
following pdf rasterizers:

SkPopplerRasterizePDF
SkNativeRasterizePDF
SkNoRasterizePDF

Requires a change to Android, which currently treats SkStreams as ref
counted objects.

Review URL: https://codereview.chromium.org/849103004
2015-01-21 12:09:53 -08:00
robertphillips
783fe16b8e Rename SkDrawPictureCallback to SkPicture::AbortCallback
Committed: https://skia.googlesource.com/skia/+/7ef197255deb4e2fa64c03c7130d56ddf164e83c

Review URL: https://codereview.chromium.org/829983003
2015-01-07 07:28:41 -08:00
reed
8ea6dabbb1 Revert of Rename SkDrawPictureCallback to SkPicture::AbortCallback (patchset #2 id:20001 of https://codereview.chromium.org/829983003/)
Reason for revert:
speculative revert to unblock DEPS roll

Original issue's description:
> Rename SkDrawPictureCallback to SkPicture::AbortCallback
>
> Committed: https://skia.googlesource.com/skia/+/7ef197255deb4e2fa64c03c7130d56ddf164e83c

TBR=reed@google.com,robertphillips@google.com
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/824013004
2015-01-06 16:15:25 -08:00
robertphillips
7ef197255d Rename SkDrawPictureCallback to SkPicture::AbortCallback
Review URL: https://codereview.chromium.org/829983003
2015-01-06 12:26:08 -08:00
scroggo
16c8f14cd4 Remove last trace of SK_LEGACY_ENCODE_BITMAP
Review URL: https://codereview.chromium.org/819173002
2014-12-22 13:50:45 -08:00
reed
5e8b1688ee remove dead SK_LEGACY_ENCODE_BITMAP flag
BUG=skia:
TBR=

Review URL: https://codereview.chromium.org/820903002
2014-12-20 15:23:55 -08:00
scroggo
b64e56941c Remove legacy Picture defines.
No longer needed by Android.

Review URL: https://codereview.chromium.org/788903006
2014-12-19 07:28:00 -08:00
scroggo
895c43b28b Replace EncodeBitmap with an interface.
Gives more flexibility to the caller to decide whether to use the
encoded data returned by refEncodedData().

Provides an implementation that supports the old version of
SkPicture::serialize().

TODO: Update Chrome, so we can remove SK_LEGACY_ENCODE_BITMAP entirely

BUG=skia:3190

Review URL: https://codereview.chromium.org/784643002
2014-12-11 10:53:58 -08:00
junov
f3c78ccf56 Adding an option for pixelated rendering in SkPictureImageFilter
BUG=skia:3209

Review URL: https://codereview.chromium.org/787073003
2014-12-09 13:07:22 -08:00
scroggo
3030445799 Revert of Replace EncodeBitmap with an interface. (patchset #12 id:210001 of https://codereview.chromium.org/784643002/)
Reason for revert:
Failing serialization tasks in DM:

http://build.chromium.org/p/client.skia/builders/Test-Win8-ShuttleA-GTX660-x86-Debug/builds/352/steps/dm/logs/stdio

Original issue's description:
> Replace EncodeBitmap with an interface.
>
> Gives more flexibility to the caller to decide whether to use the
> encoded data returned by refEncodedData().
>
> Provides an implementation that supports the old version of
> SkPicture::serialize().
>
> TODO: Update Chrome, so we can remove SK_LEGACY_ENCODE_BITMAP entirely
>
> BUG=skia:3190
>
> Committed: https://skia.googlesource.com/skia/+/0c4aba6edb9900c597359dfa49d3ce4a41bc5dd1
>
> Committed: https://skia.googlesource.com/skia/+/02b217f80b01a7dda8493422e5257c36a9ce8464

TBR=reed@google.com,rmistry@google.com
NOTREECHECKS=true
NOTRY=true
BUG=skia:3190

Review URL: https://codereview.chromium.org/783393004
2014-12-09 08:27:37 -08:00
scroggo
02b217f80b Replace EncodeBitmap with an interface.
Gives more flexibility to the caller to decide whether to use the
encoded data returned by refEncodedData().

Provides an implementation that supports the old version of
SkPicture::serialize().

TODO: Update Chrome, so we can remove SK_LEGACY_ENCODE_BITMAP entirely

BUG=skia:3190

Committed: https://skia.googlesource.com/skia/+/0c4aba6edb9900c597359dfa49d3ce4a41bc5dd1

Review URL: https://codereview.chromium.org/784643002
2014-12-09 07:44:36 -08:00
robertphillips
c0708cb7bc Revert of Replace EncodeBitmap with an interface. (patchset #11 id:190001 of https://codereview.chromium.org/784643002/)
Reason for revert:
Compilation is failing on some bots

Original issue's description:
> Replace EncodeBitmap with an interface.
>
> Gives more flexibility to the caller to decide whether to use the
> encoded data returned by refEncodedData().
>
> Provides an implementation that supports the old version of
> SkPicture::serialize().
>
> TODO: Update Chrome, so we can remove SK_LEGACY_ENCODE_BITMAP entirely
>
> BUG=skia:3190
>
> Committed: https://skia.googlesource.com/skia/+/0c4aba6edb9900c597359dfa49d3ce4a41bc5dd1

TBR=reed@google.com,scroggo@google.com
NOTREECHECKS=true
NOTRY=true
BUG=skia:3190

Review URL: https://codereview.chromium.org/787833002
2014-12-09 05:35:07 -08:00
scroggo
0c4aba6edb Replace EncodeBitmap with an interface.
Gives more flexibility to the caller to decide whether to use the
encoded data returned by refEncodedData().

Provides an implementation that supports the old version of
SkPicture::serialize().

TODO: Update Chrome, so we can remove SK_LEGACY_ENCODE_BITMAP entirely

BUG=skia:3190

Review URL: https://codereview.chromium.org/784643002
2014-12-09 05:23:12 -08:00
reed
8eddfb50c0 Change clear() to respect the clip
This reverts commit af641a1c10.

BUG=skia:
TBR=

Review URL: https://codereview.chromium.org/783493002
2014-12-04 07:50:14 -08:00
reed
af641a1c10 Revert "Change clear() to respect the clip"
This reverts commit 3729469d6a.

BUG=skia:
TBR=

Review URL: https://codereview.chromium.org/778563002
2014-12-02 19:40:18 -08:00
Justin Novosad
5234075b1c Adding a PictureResolution option to SkPictureImageFilter
This change adds an option to SkPictureImageFilter to make it
rasterize SkPicture in a resolution that matches the local coordinate
space (equivalent to the record-time device space).

BUG=skia:3176
R=reed@google.com, senorblanco@chromium.org

Review URL: https://codereview.chromium.org/753073010
2014-12-02 14:50:56 -05:00
reed
3729469d6a Change clear() to respect the clip
patch from issue 769703002 at patchset 1 (http://crrev.com/769703002#ps1)

BUG=skia:

Review URL: https://codereview.chromium.org/772533004
2014-12-02 10:08:11 -08:00
mtklein
88fd0fbccc Bump min picture version.
Chrome Stable is M39, which produces picture format v35:
    https://chromium.googlesource.com/skia/+/chrome/m39/include/core/SkPicture.h

We don't need any code to deal with pictures older than v35.

(When M40 goes stable, we can step up to v37, the current latest version.)

BUG=skia:

Review URL: https://codereview.chromium.org/770703002
2014-12-01 06:56:38 -08:00
reed
1bdfd3f4f0 option to return drawable from recording
patch from issue 747033005 at patchset 80001 (http://crrev.com/747033005#ps80001)

BUG=skia:

Review URL: https://codereview.chromium.org/732653004
2014-11-24 14:41:51 -08:00
mtklein
04c9695055 Remove Picture deletion listeners.
Looks like we can just have ~SkPicture put the message on the bus directly.

BUG=skia:3144

Review URL: https://codereview.chromium.org/751663002
2014-11-24 08:20:58 -08:00
reed
735f548c51 use int instead of size_t to match skia convention
BUG=skia:
TBR=mtklein@google.com

Review URL: https://codereview.chromium.org/753903002
2014-11-23 18:37:14 -08:00
mtklein
19ac76753e SkPicture::SnapshotArray doesn't really stand to benefit from refcounting.
BUG=skia:

Review URL: https://codereview.chromium.org/748803005
2014-11-21 12:20:35 -08:00
mtklein
04038eba9f public SkNVRefCnt<SnapshotArray>
Should fix broken build.

NOTRY=true
TBR=reed@google.com

BUG=skia:

Review URL: https://codereview.chromium.org/748143002
2014-11-21 11:13:15 -08:00
mtklein
b7ee349f10 SkData -> SkPicture::SnapshotArray
Restores type safety with all the same features.

(Also note, less code: 29 insertions, 50 deletions.)

BUG=skia:

Review URL: https://codereview.chromium.org/746553002
2014-11-21 11:06:04 -08:00
reed
41d2c2e434 simplify uniqueID code in picture
patch from issue 750003002 at patchset 1 (http://crrev.com/750003002#ps1)

BUG=skia:

Review URL: https://codereview.chromium.org/752573002
2014-11-21 08:07:41 -08:00
mtklein
08d1fccf6e Add SkNVRefCnt, prune down SkPicture's size
SkNVRefCnt is a variant of SkRefCnt that's Not Virtual, so weighs 4 bytes
instead of 8 or 16.  There's only benefit to doing this if the deriving class
does not otherwise need a vtable, e.g. SkPicture.

I've stripped out some cruft from SkPicture, rearranged fields to pack tightly,
and added compile asserts for the sizes of SkPicture, SkRecord, and
SkVarAlloc.

BUG=skia:3144

Review URL: https://codereview.chromium.org/741793002
2014-11-20 09:18:32 -08:00
tomhudson
158fcaa031 Implement SkPicture::bytesUsed() for SkRecord backend
BUG=chromium:230419
R=mtklein@google.com,reed@google.com

Review URL: https://codereview.chromium.org/490253003
2014-11-19 10:41:14 -08:00
reed
78e2768897 Allow pictures to have a full bounds
This reverts commit 7c4cdd2c5b.

BUG=skia:

Review URL: https://codereview.chromium.org/738083002
2014-11-19 08:04:34 -08:00
reed
7c4cdd2c5b Revert of allow pictures to have a full bounds (patchset #3 id:40001 of https://codereview.chromium.org/736583004/)
Reason for revert:
needed to update legacy width() helpers

Original issue's description:
> allow pictures to have a full bounds
>
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/7e76bff26e7c74902841ca4f607eb0b24a833a4a

TBR=fmalita@google.com,mtklein@google.com,robertphillips@google.com,fmalita@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/722043005
2014-11-19 07:17:17 -08:00
reed
7e76bff26e allow pictures to have a full bounds
BUG=skia:

Review URL: https://codereview.chromium.org/736583004
2014-11-19 06:59:41 -08:00
reed
6be2aa9a25 wip for drawables
Idea:

1. in its mutable recording state, keep a table of drawables on the side, and store an index in the record list.

2. In "immediate-mode" draw, just call the clients drawable directly (need access to our private list to turn the stored index into a proc)

3. when we "snap", we replace the list of drawables with a list of (sub) pictures, and then during playback of the snapped picture, we invoke a private drawable which just calls "drawPicture" on the index'd subpicture.

Review URL: https://codereview.chromium.org/727363003
2014-11-18 11:08:05 -08:00
mtklein
c6ad9eefa0 More SkPicture cleanup
- move field declarations together and pack them a little tighter
 - get rid of fData
 - remove dead code in debugger, including unused SkPicturePlayback subclass

There are now no more long-lived SkPictureData!  (Really, there never were,
but now we don't pretend to support them.)

BUG=skia:

No API changes.
TBR=reed@google.com

Review URL: https://codereview.chromium.org/725143002
2014-11-17 06:45:18 -08:00