Implements core logic for Pixel Canvas

cc/raster/raster_source.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_RASTER_RASTER_SOURCE_H_
 #define CC_RASTER_RASTER_SOURCE_H_
 
 #include <stddef.h>
 
 #include <memory>
@@ skipping 70 matching lines @@
   //
   // Virtual for testing.
   //
   // Note that this should only be called after the image decode controller has
   // been set, which happens during commit.
   virtual void PlaybackToCanvas(SkCanvas* canvas,
                                 const gfx::ColorSpace& target_color_space,
                                 const PlaybackSettings& settings) const;
 
   // Returns whether the given rect at given scale is of solid color in
   // this raster source, as well as the solid color value.

[oshima, 2017/06/15 22:59:12]

update the comment

[malaykeshav, 2017/06/16 20:41:57]

Done

-  bool PerformSolidColorAnalysis(const gfx::Rect& content_rect,
-                                 float contents_scale,
+  bool PerformSolidColorAnalysis(gfx::Rect content_rect,
+                                 const gfx::AxisTransform2d& raster_transform,
                                  SkColor* color) const;
 
   // Returns true iff the whole raster source is of solid color.
   bool IsSolidColor() const;
 
   // Returns the color of the raster source if it is solid color. The results
   // are unspecified if IsSolidColor returns false.
   SkColor GetSolidColor() const;
 
   // Returns the size of this raster source.
@@ skipping 67 matching lines @@
                     SkPicture::AbortCallback* callback = nullptr) const;
 
   void PrepareForPlaybackToCanvas(SkCanvas* canvas) const;
 
   DISALLOW_COPY_AND_ASSIGN(RasterSource);
 };
 
 }  // namespace cc
 
 #endif  // CC_RASTER_RASTER_SOURCE_H_