cc: Remove legacy accelerated painting path

cc/resources/resource_update.h

Index: cc/resources/resource_update.h
diff --git a/cc/resources/resource_update.h b/cc/resources/resource_update.h
index 6484da20bac552a979cdd6ed7aaeb1aade0bf471..47bef7da189bc3c492e2919a2a3f76ac5d7c419f 100644
--- a/cc/resources/resource_update.h
+++ b/cc/resources/resource_update.h
@@ -12,7 +12,6 @@
 #include "ui/gfx/vector2d.h"
 
 class SkBitmap;
-class SkPicture;
 class SkCanvas;
 
 namespace cc {
@@ -30,18 +29,12 @@ struct CC_EXPORT ResourceUpdate {
                                          gfx::Rect content_rect,
                                          gfx::Rect source_rect,
                                          gfx::Vector2d dest_offset);
-  static ResourceUpdate CreateFromPicture(PrioritizedResource* resource,
-                                          SkPicture* bitmap,
-                                          gfx::Rect content_rect,
-                                          gfx::Rect source_rect,
-                                          gfx::Vector2d dest_offset);
 
   ResourceUpdate();
   virtual ~ResourceUpdate();
 
   PrioritizedResource* texture;
   const SkBitmap* bitmap;
-  SkPicture* picture;
   skia::RefPtr<SkCanvas> canvas;
   gfx::Rect content_rect;
   gfx::Rect source_rect;