Introduce CompositorDependencies for RenderWidgetCompositor.

cc/resources/resource_provider.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/resource_provider.h"
 
 #include <algorithm>
 #include <limits>
 
 #include "base/containers/hash_tables.h"
@@ skipping 537 matching lines @@
                     format);
   resource.allocated = false;
   resources_[id] = resource;
   return id;
 }
 
 ResourceProvider::ResourceId ResourceProvider::CreateBitmap(
     const gfx::Size& size, GLint wrap_mode) {
   DCHECK(thread_checker_.CalledOnValidThread());
 
-  scoped_ptr<SharedBitmap> bitmap;
-  if (shared_bitmap_manager_)
-    bitmap = shared_bitmap_manager_->AllocateSharedBitmap(size);
-
-  uint8_t* pixels;
-  if (bitmap) {
-    pixels = bitmap->pixels();
-  } else {
-    size_t bytes = SharedBitmap::CheckedSizeInBytes(size);
-    pixels = new uint8_t[bytes];
-  }
+  scoped_ptr<SharedBitmap> bitmap =
+      shared_bitmap_manager_->AllocateSharedBitmap(size);
+  uint8_t* pixels = bitmap->pixels();
   DCHECK(pixels);
 
   ResourceId id = next_id_++;
   Resource resource(
       pixels, bitmap.release(), size, Resource::Internal, GL_LINEAR, wrap_mode);
   resource.allocated = true;
   resources_[id] = resource;
   return id;
 }
 
@@ skipping 1562 matching lines @@
   ContextProvider* context_provider = output_surface_->context_provider();
   return context_provider ? context_provider->ContextGL() : NULL;
 }
 
 class GrContext* ResourceProvider::GrContext() const {
   ContextProvider* context_provider = output_surface_->context_provider();
   return context_provider ? context_provider->GrContext() : NULL;
 }
 
 }  // namespace cc