Revert 138212 - Implement High Contrast mode for Chrome OS.

ui/compositor/layer.h

Index: ui/compositor/layer.h
===================================================================
--- ui/compositor/layer.h	(revision 138238)
+++ ui/compositor/layer.h	(working copy)
@@ -134,10 +134,6 @@
   int background_blur() const { return background_blur_radius_; }
   void SetBackgroundBlur(int blur_radius);
 
-  // Invert the layer.
-  bool inverted() const { return inverted_; }
-  void SetInverted(bool inverted);
-
   // Return the target opacity if animator is running, or the current opacity
   // otherwise.
   float GetTargetOpacity() const;
@@ -292,7 +288,6 @@
 
   float opacity_;
   int background_blur_radius_;
-  bool inverted_;
 
   std::string name_;