Remove parts of //cc we aren't using

cc/resources/image_layer_updater.cc

-// Copyright 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "cc/resources/image_layer_updater.h"
-#include "cc/resources/prioritized_resource.h"
-#include "cc/resources/resource_update_queue.h"
-
-namespace cc {
-
-ImageLayerUpdater::Resource::Resource(ImageLayerUpdater* updater,
-                                      scoped_ptr<PrioritizedResource> texture)
-    : LayerUpdater::Resource(texture.Pass()), updater_(updater) {}
-
-ImageLayerUpdater::Resource::~Resource() {}
-
-void ImageLayerUpdater::Resource::Update(ResourceUpdateQueue* queue,
-                                         const gfx::Rect& source_rect,
-                                         const gfx::Vector2d& dest_offset,
-                                         bool partial_update) {
-  updater_->UpdateTexture(
-      queue, texture(), source_rect, dest_offset, partial_update);
-}
-
-// static
-scoped_refptr<ImageLayerUpdater> ImageLayerUpdater::Create() {
-  return make_scoped_refptr(new ImageLayerUpdater());
-}
-
-scoped_ptr<LayerUpdater::Resource> ImageLayerUpdater::CreateResource(
-    PrioritizedResourceManager* manager) {
-  return make_scoped_ptr(
-      new Resource(this, PrioritizedResource::Create(manager)));
-}
-
-void ImageLayerUpdater::UpdateTexture(ResourceUpdateQueue* queue,
-                                      PrioritizedResource* texture,
-                                      const gfx::Rect& source_rect,
-                                      const gfx::Vector2d& dest_offset,
-                                      bool partial_update) {
-  // Source rect should never go outside the image pixels, even if this
-  // is requested because the texture extends outside the image.
-  gfx::Rect clipped_source_rect = source_rect;
-  gfx::Rect image_rect = gfx::Rect(0, 0, bitmap_.width(), bitmap_.height());
-  clipped_source_rect.Intersect(image_rect);
-
-  gfx::Vector2d clipped_dest_offset =
-      dest_offset +
-      gfx::Vector2d(clipped_source_rect.origin() - source_rect.origin());
-
-  ResourceUpdate upload = ResourceUpdate::Create(
-      texture, &bitmap_, image_rect, clipped_source_rect, clipped_dest_offset);
-  if (partial_update)
-    queue->AppendPartialUpload(upload);
-  else
-    queue->AppendFullUpload(upload);
-}
-
-void ImageLayerUpdater::SetBitmap(const SkBitmap& bitmap) {
-  DCHECK(bitmap.pixelRef());
-  bitmap_ = bitmap;
-}
-
-bool ImageLayerUpdater::UsingBitmap(const SkBitmap& bitmap) const {
-  return bitmap.pixelRef() == bitmap_.pixelRef();
-}
-
-}  // namespace cc