Add shared bitmap managers for browser and renderer processes.

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 1931 matching lines @@
                                      NULL);
     }
     gl->EndQueryEXT(GL_ASYNC_PIXEL_UNPACK_COMPLETED_CHROMIUM);
     gl->BindBuffer(GL_PIXEL_UNPACK_TRANSFER_BUFFER_CHROMIUM, 0);
   } else {
     DCHECK_EQ(Bitmap, resource->type);
     DCHECK(!resource->mailbox.IsValid());
     DCHECK(resource->pixel_buffer);
     DCHECK_EQ(RGBA_8888, resource->format);
 
-    std::swap(resource->pixels, resource->pixel_buffer);
+    memcpy(
+        resource->pixels, resource->pixel_buffer, 4 * resource->size.GetArea());
     delete[] resource->pixel_buffer;
     resource->pixel_buffer = NULL;
   }
 
   resource->pending_set_pixels = true;
   resource->set_pixels_completion_forced = false;
 }
 
 void ResourceProvider::ForceSetPixelsToComplete(ResourceId id) {
   Resource* resource = GetResource(id);
@@ skipping 217 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