color: Remove blink pre-conversion code

third_party/WebKit/Source/platform/graphics/GraphicsLayer.h

Index: third_party/WebKit/Source/platform/graphics/GraphicsLayer.h
diff --git a/third_party/WebKit/Source/platform/graphics/GraphicsLayer.h b/third_party/WebKit/Source/platform/graphics/GraphicsLayer.h
index 7934c335ce370e5b347f5e2c3021eadb5bce80a4..dc5e176dfc44282a6b7071566c8f74a5cd2910a5 100644
--- a/third_party/WebKit/Source/platform/graphics/GraphicsLayer.h
+++ b/third_party/WebKit/Source/platform/graphics/GraphicsLayer.h
@@ -281,8 +281,6 @@ class PLATFORM_EXPORT GraphicsLayer : public cc::LayerClient,
   void setPreferredRasterBounds(const IntSize&);
   void clearPreferredRasterBounds();
 
-  const ColorBehavior& colorBehavior() const { return m_colorBehavior; }
-
  protected:
   String debugName(cc::Layer*) const;
   bool shouldFlattenTransform() const { return m_shouldFlattenTransform; }
@@ -397,8 +395,6 @@ class PLATFORM_EXPORT GraphicsLayer : public cc::LayerClient,
 
   std::unique_ptr<PaintController> m_paintController;
 
-  ColorBehavior m_colorBehavior;
-
   IntRect m_previousInterestRect;
   IntSize m_preferredRasterBounds;
   bool m_hasPreferredRasterBounds;