color: Remove implied color space

cc/playback/raster_source.h

Index: cc/playback/raster_source.h
diff --git a/cc/playback/raster_source.h b/cc/playback/raster_source.h
index aae19ead689106e5ec0a6260c4c7e75bdf1fd153..522557cbb8daa2b77975177f965a412eafa0d0ee 100644
--- a/cc/playback/raster_source.h
+++ b/cc/playback/raster_source.h
@@ -18,10 +18,6 @@
 #include "skia/ext/analysis_canvas.h"
 #include "third_party/skia/include/core/SkPicture.h"
 
-namespace gfx {
-class ColorSpace;
-}
-
 namespace cc {
 class DisplayItemList;
 class DrawImage;
@@ -92,14 +88,6 @@ class CC_EXPORT RasterSource : public base::RefCountedThreadSafe<RasterSource> {
   // Returns the size of this raster source.
   gfx::Size GetSize() const;
 
-  // Returns whether or not there was a color space implied by the raster source
-  // when it was created. If this returns true then no color correction is
-  // to be applied at rasterization time, and the result of rasterization is to
-  // be interpreted as being in this color space. If this returns falce, then
-  // then a destination color space must be specified at raster time.
-  bool HasImpliedColorSpace() const;
-  const gfx::ColorSpace& GetImpliedColorSpace() const;
-
   // Populate the given list with all images that may overlap the given
   // rect in layer space. The returned draw images' matrices are modified as if
   // they were being using during raster at scale |raster_scale|.