[cc] Unify static create method of ResourceUpdate

cc/resources/resource_update.cc

Index: cc/resources/resource_update.cc
diff --git a/cc/resources/resource_update.cc b/cc/resources/resource_update.cc
index 5760ddf4a0dde663b3fdb6bb336d66638c1dc37d..7f89d8cd9673fc049e5c457e833affc0ec508b34 100644
--- a/cc/resources/resource_update.cc
+++ b/cc/resources/resource_update.cc
@@ -5,37 +5,18 @@
 #include "cc/resources/resource_update.h"
 
 #include "base/logging.h"
-#include "third_party/skia/include/core/SkCanvas.h"
-#include "third_party/skia/include/core/SkDevice.h"
 
 namespace cc {
 
-ResourceUpdate ResourceUpdate::Create(PrioritizedResource* texture,
+ResourceUpdate ResourceUpdate::Create(PrioritizedResource* resource,
                                       const SkBitmap* bitmap,
                                       gfx::Rect content_rect,
                                       gfx::Rect source_rect,
                                       gfx::Vector2d dest_offset) {
   CHECK(content_rect.Contains(source_rect));
   ResourceUpdate update;
-  update.texture = texture;
-  update.bitmap = bitmap;
-  update.content_rect = content_rect;
-  update.source_rect = source_rect;
-  update.dest_offset = dest_offset;
-  return update;
-}
-
-ResourceUpdate ResourceUpdate::CreateFromCanvas(
-    PrioritizedResource* resource,
-    const skia::RefPtr<SkCanvas>& canvas,
-    gfx::Rect content_rect,
-    gfx::Rect source_rect,
-    gfx::Vector2d dest_offset) {
-  CHECK(content_rect.Contains(source_rect));
-  ResourceUpdate update;
   update.texture = resource;
-  update.canvas = canvas;
-  update.bitmap = &canvas->getDevice()->accessBitmap(false);
+  update.bitmap = bitmap;
   update.content_rect = content_rect;
   update.source_rect = source_rect;
   update.dest_offset = dest_offset;