SkImage::onRefEncoded to return sk_sp.

This changes SkImage::onRefEncoded and downstack calls to return sk_sp.
All of the values returned are already sk_sp, so this just updates the
API. This change is currently behind the new flag
SK_IGNORE_SKIMAGE_ONREFENCODED_CHANGE so that Chromium can be updated.

Change-Id: Ic53a88ae23fa8b3b41b84c4abdc4b74e9879da38
Reviewed-on: https://skia-review.googlesource.com/128311
Reviewed-by: Leon Scroggins <scroggo@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>

include/core/SkData.h

@@ -171,9 +171,6 @@ private:
     // Ensure the unsized delete is called.
     void operator delete(void* p) { ::operator delete(p); }
 
-    // Called the first time someone calls NewEmpty to initialize the singleton.
-    friend SkData* sk_new_empty_data();
-
     // shared internal factory
     static sk_sp<SkData> PrivateNewWithCopy(const void* srcOrNull, size_t length);
 

include/core/SkImageGenerator.h

@@ -41,9 +41,15 @@ public:
      *  If non-NULL is returned, the caller is responsible for calling
      *  unref() on the data when it is finished.
      */
+#if SK_IGNORE_SKIMAGE_ONREFENCODED_CHANGE
     SkData* refEncodedData() {
         return this->onRefEncodedData();
     }
+#else
+    sk_sp<SkData> refEncodedData() {
+        return this->onRefEncodedData();
+    }
+#endif
 
     /**
      *  Return the ImageInfo associated with this generator.
@@ -174,7 +180,11 @@ protected:
 
     SkImageGenerator(const SkImageInfo& info, uint32_t uniqueId = kNeedNewImageUniqueID);
 
+#if SK_IGNORE_SKIMAGE_ONREFENCODED_CHANGE
     virtual SkData* onRefEncodedData() { return nullptr; }
+#else
+    virtual sk_sp<SkData> onRefEncodedData() { return nullptr; }
+#endif
     virtual bool onGetPixels(const SkImageInfo&, void*, size_t, const Options&) { return false; }
     virtual bool onIsValid(GrContext*) const { return true; }
     virtual bool onQueryYUV8(SkYUVSizeInfo*, SkYUVColorSpace*) const { return false; }

src/codec/SkCodecImageGenerator.cpp

@@ -35,9 +35,15 @@ SkCodecImageGenerator::SkCodecImageGenerator(std::unique_ptr<SkCodec> codec, sk_
     , fData(std::move(data))
 {}
 
+#if SK_IGNORE_SKIMAGE_ONREFENCODED_CHANGE
 SkData* SkCodecImageGenerator::onRefEncodedData() {
     return SkRef(fData.get());
 }
+#else
+sk_sp<SkData> SkCodecImageGenerator::onRefEncodedData() {
+    return fData;
+}
+#endif
 
 bool SkCodecImageGenerator::onGetPixels(const SkImageInfo& requestInfo, void* requestPixels,
                                         size_t requestRowBytes, const Options& opts) {

src/codec/SkCodecImageGenerator.h

@@ -21,7 +21,11 @@ public:
     static std::unique_ptr<SkImageGenerator> MakeFromEncodedCodec(sk_sp<SkData>);
 
 protected:
+#if SK_IGNORE_SKIMAGE_ONREFENCODED_CHANGE
     SkData* onRefEncodedData() override;
+#else
+    sk_sp<SkData> onRefEncodedData() override;
+#endif
 
     bool onGetPixels(const SkImageInfo& info, void* pixels, size_t rowBytes, const Options& opts)
                      override;

src/core/SkStreamPriv.h

@@ -21,9 +21,7 @@ class SkWStream;
  *  but is not at the beginning, this call will fail (return NULL).
  *
  *  @param stream SkStream to be copied into data.
- *  @return SkData* The resulting SkData after the copy. This data
- *      will have a ref count of one upon return and belongs to the
- *      caller. Returns nullptr on failure.
+ *  @return The resulting SkData after the copy, nullptr on failure.
  */
 sk_sp<SkData> SkCopyStreamToData(SkStream* stream);
 

src/image/SkImage_Base.h

@@ -76,7 +76,11 @@ public:
 
     virtual sk_sp<SkImage> onMakeSubset(const SkIRect&) const = 0;
 
+#if SK_IGNORE_SKIMAGE_ONREFENCODED_CHANGE
     virtual SkData* onRefEncoded() const { return nullptr; }
+#else
+    virtual sk_sp<SkData> onRefEncoded() const { return nullptr; }
+#endif
 
     virtual bool onAsLegacyBitmap(SkBitmap*) const;
 

src/image/SkImage_Lazy.cpp

@@ -85,7 +85,11 @@ public:
                                             sk_sp<SkColorSpace>*,
                                             SkScalar scaleAdjust[2]) const override;
 #endif
+#if SK_IGNORE_SKIMAGE_ONREFENCODED_CHANGE
     SkData* onRefEncoded() const override;
+#else
+    sk_sp<SkData> onRefEncoded() const override;
+#endif
     sk_sp<SkImage> onMakeSubset(const SkIRect&) const override;
     bool getROPixels(SkBitmap*, SkColorSpace* dstColorSpace, CachingHint) const override;
     bool onIsLazyGenerated() const override { return true; }
@@ -568,10 +572,17 @@ bool SkImage_Lazy::onReadPixels(const SkImageInfo& dstInfo, void* dstPixels, siz
     return false;
 }
 
+#if SK_IGNORE_SKIMAGE_ONREFENCODED_CHANGE
 SkData* SkImage_Lazy::onRefEncoded() const {
     ScopedGenerator generator(fSharedGenerator);
     return generator->refEncodedData();
 }
+#else
+sk_sp<SkData> SkImage_Lazy::onRefEncoded() const {
+    ScopedGenerator generator(fSharedGenerator);
+    return generator->refEncodedData();
+}
+#endif
 
 bool SkImage_Lazy::getROPixels(SkBitmap* bitmap, SkColorSpace* dstColorSpace,
                                CachingHint chint) const {

src/ports/SkImageGeneratorCG.cpp

@@ -97,9 +97,15 @@ SkImageGeneratorCG::SkImageGeneratorCG(const SkImageInfo& info, const void* imag
     , fOrigin(origin)
 {}
 
+#if SK_IGNORE_SKIMAGE_ONREFENCODED_CHANGE
 SkData* SkImageGeneratorCG::onRefEncodedData() {
     return SkRef(fData.get());
 }
+#else
+sk_sp<SkData> SkImageGeneratorCG::onRefEncodedData() {
+    return fData;
+}
+#endif
 
 bool SkImageGeneratorCG::onGetPixels(const SkImageInfo& info, void* pixels, size_t rowBytes,
         const Options&) {

src/ports/SkImageGeneratorCG.h

@@ -27,7 +27,11 @@ public:
     static std::unique_ptr<SkImageGenerator> MakeFromEncodedCG(sk_sp<SkData>);
 
 protected:
+#if SK_IGNORE_SKIMAGE_ONREFENCODED_CHANGE
     SkData* onRefEncodedData() override;
+#else
+    sk_sp<SkData> onRefEncodedData() override;
+#endif
 
     bool onGetPixels(const SkImageInfo& info, void* pixels, size_t rowBytes, const Options&)
     override;

src/ports/SkImageGeneratorWIC.cpp

@@ -132,9 +132,15 @@ SkImageGeneratorWIC::SkImageGeneratorWIC(const SkImageInfo& info,
     , fData(SkRef(data))
 {}
 
+#if SK_IGNORE_SKIMAGE_ONREFENCODED_CHANGE
 SkData* SkImageGeneratorWIC::onRefEncodedData() {
     return SkRef(fData.get());
 }
+#else
+sk_sp<SkData> SkImageGeneratorWIC::onRefEncodedData() {
+    return fData;
+}
+#endif
 
 bool SkImageGeneratorWIC::onGetPixels(const SkImageInfo& info, void* pixels, size_t rowBytes,
         const Options&) {

src/ports/SkImageGeneratorWIC.h

@@ -39,7 +39,11 @@ public:
     static SkImageGenerator* NewFromEncodedWIC(SkData* data);
 
 protected:
+#if SK_IGNORE_SKIMAGE_ONREFENCODED_CHANGE
     SkData* onRefEncodedData() override;
+#else
+    sk_sp<SkData> onRefEncodedData() override;
+#endif
 
     bool onGetPixels(const SkImageInfo& info, void* pixels, size_t rowBytes, const Options&)
     override;