Revert "Revert "move GrColor.h to private, IWYU""

This reverts commit 63cc29304a.

Reason for revert: pdfium updated

Original change's description:
> Revert "move GrColor.h to private, IWYU"
> 
> This reverts commit e602f39581.
> 
> Reason for revert: Breaks PDFIUM
> 
> Original change's description:
> > move GrColor.h to private, IWYU
> > 
> > Bug: skia:
> > Change-Id: I0f0dabd7cc54cb7786f53bd6da0c0c012375037e
> > Reviewed-on: https://skia-review.googlesource.com/104160
> > Commit-Queue: Mike Reed <reed@google.com>
> > Reviewed-by: Brian Salomon <bsalomon@google.com>
> 
> TBR=bsalomon@google.com,reed@google.com
> 
> Change-Id: Ifaa50f8771fa1ca8bc152270efdb1fe27f7210f2
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Bug: skia:
> Reviewed-on: https://skia-review.googlesource.com/104440
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Brian Salomon <bsalomon@google.com>

TBR=bsalomon@google.com,reed@google.com

Change-Id: I22fa5c0e0628b5c1f3b5f13879c7d1a4528cc93a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/104561
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>

gm/aaxfermodes.cpp

@@ -6,8 +6,9 @@
  */
 
 #include "gm.h"
+#include "GrColor.h"
 #include "sk_tool_utils.h"
-#include "SkBlendModePriv.h"
+#include "SkColorPriv.h"
 #include "SkPath.h"
 #include "SkShader.h"
 

gm/composeshader.cpp

@@ -7,6 +7,7 @@
 
 #include "gm.h"
 
+#include "SkColorPriv.h"
 #include "SkCanvas.h"
 #include "SkGradientShader.h"
 #include "SkGraphics.h"

gm/filterbug.cpp

@@ -6,6 +6,7 @@
  */
 
 #include "gm.h"
+#include "SkColorPriv.h"
 #include "SkImageShader.h"
 
 static const sk_sp<SkImage> make_image(int firstBlackRow, int lastBlackRow) {

gm/image.cpp

@@ -9,6 +9,7 @@
 #include "gm.h"
 #include "sk_tool_utils.h"
 #include "SkAutoPixmapStorage.h"
+#include "SkColorPriv.h"
 #include "SkData.h"
 #include "SkCanvas.h"
 #include "SkRandom.h"

gm/jpg_color_cube.cpp

@@ -7,6 +7,7 @@
 #include "gm.h"
 #include "sk_tool_utils.h"
 #include "SkCanvas.h"
+#include "SkColorPriv.h"
 #include "SkData.h"
 #include "SkImage.h"
 #include "SkImageEncoder.h"

gm/shapes_as_paths.cpp

@@ -8,6 +8,7 @@
 #include "gm.h"
 
 #include "SkAutoPixmapStorage.h"
+#include "SkColorPriv.h"
 #include "SkImage.h"
 #include "SkPath.h"
 #include "SkSurface.h"

gm/showmiplevels.cpp

@@ -9,6 +9,7 @@
 #include "sk_tool_utils.h"
 
 #include "Resources.h"
+#include "SkColorPriv.h"
 #include "SkGradientShader.h"
 #include "SkTypeface.h"
 #include "SkStream.h"

gm/simple_magnification.cpp

@@ -7,6 +7,7 @@
 
 #include "gm.h"
 #include "sk_tool_utils.h"
+#include "SkColorPriv.h"
 #include "SkImageSource.h"
 #include "SkMagnifierImageFilter.h"
 #include "SkSurface.h"

gn/gpu.gni

@@ -12,7 +12,6 @@ skia_gpu_sources = [
   "$_include/gpu/GrBackendSurface.h",
   "$_include/gpu/GrBlend.h",
   "$_include/gpu/GrCaps.h",
-  "$_include/gpu/GrColor.h",
   "$_include/gpu/GrConfig.h",
   "$_include/gpu/GrContextOptions.h",
   "$_include/gpu/GrContext.h",
@@ -34,6 +33,7 @@ skia_gpu_sources = [
 
   # Private includes
   "$_include/private/GrAuditTrail.h",
+  "$_include/private/GrColor.h",
   "$_include/private/GrGLSL.h",
   "$_include/private/GrOpList.h",
   "$_include/private/GrSingleOwner.h",

include/core/SkImage.h

@@ -8,6 +8,7 @@
 #ifndef SkImage_DEFINED
 #define SkImage_DEFINED
 
+#include "GrTypes.h"
 #include "SkFilterQuality.h"
 #include "SkImageInfo.h"
 #include "SkImageEncoder.h"

include/core/SkShader.h

@@ -9,11 +9,11 @@
 #define SkShader_DEFINED
 
 #include "SkBlendMode.h"
+#include "SkColor.h"
 #include "SkFilterQuality.h"
 #include "SkFlattenable.h"
 #include "SkImageInfo.h"
 #include "SkMatrix.h"
-#include "../gpu/GrColor.h"
 
 class SkArenaAlloc;
 class SkBitmap;

include/gpu/GrBlend.h

@@ -9,7 +9,7 @@
 #ifndef GrBlend_DEFINED
 #define GrBlend_DEFINED
 
-#include "GrColor.h"
+#include "GrTypes.h"
 #include "../private/SkTLogic.h"
 
 /**

include/gpu/GrContext.h

@@ -9,7 +9,6 @@
 #define GrContext_DEFINED
 
 #include "GrCaps.h"
-#include "GrColor.h"
 #include "SkMatrix.h"
 #include "SkPathEffect.h"
 #include "SkTypes.h"

src/core/SkPixmap.cpp

@@ -19,6 +19,7 @@
 #include "SkReadPixelsRec.h"
 #include "SkSurface.h"
 #include "SkTemplates.h"
+#include "SkUnPreMultiply.h"
 #include "SkUtils.h"
 
 /////////////////////////////////////////////////////////////////////////////////////////////////

src/core/SkUnPreMultiplyPriv.h

@@ -9,6 +9,7 @@
 #define SkUnPreMultiplyPriv_DEFINED
 
 #include "SkColor.h"
+#include "SkUnPreMultiply.h"
 
 template <bool kSwapRB>
 void SkUnpremultiplyRow(uint32_t* dst, const uint32_t* src, int count) {

src/effects/SkBlurMask.cpp

@@ -7,6 +7,7 @@
 
 
 #include "SkBlurMask.h"
+#include "SkColorPriv.h"
 #include "SkMaskBlurFilter.h"
 #include "SkMath.h"
 #include "SkTemplates.h"

src/effects/SkEmbossMaskFilter.cpp

@@ -8,6 +8,7 @@
 #include "SkEmbossMaskFilter.h"
 #include "SkBlurMaskFilter.h"
 #include "SkBlurMask.h"
+#include "SkColorPriv.h"
 #include "SkEmbossMask.h"
 #include "SkReadBuffer.h"
 #include "SkWriteBuffer.h"

src/gpu/GrBlend.cpp

@@ -6,6 +6,7 @@
 */
 
 #include "GrBlend.h"
+#include "../private/GrColor.h"
 
 /**
  * MaskedColor is used to evaluate the color and valid color component flags through the

tests/EncodeTest.cpp

@@ -9,6 +9,7 @@
 #include "Test.h"
 
 #include "SkBitmap.h"
+#include "SkColorPriv.h"
 #include "SkEncodedImageFormat.h"
 #include "SkImage.h"
 #include "SkJpegEncoder.h"