Added preliminary support for tile rasterization with Ganesh

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 814 matching lines @@
       target_(resource_provider->BindForSampling(resource_id, unit_, filter)) {
 }
 
 ResourceProvider::ScopedSamplerGL::~ScopedSamplerGL() {
 }
 
 ResourceProvider::ScopedWriteLockGL::ScopedWriteLockGL(
     ResourceProvider* resource_provider,
     ResourceProvider::ResourceId resource_id)
     : resource_provider_(resource_provider),
-      resource_id_(resource_id),
-      texture_id_(resource_provider->LockForWrite(resource_id)->gl_id) {
+      resource_id_(resource_id) {
+  const Resource* resource = resource_provider->LockForWrite(resource_id);
+  texture_id_ = resource->gl_id;
+  format_ = resource->format;
   DCHECK(texture_id_);
 }
 
 ResourceProvider::ScopedWriteLockGL::~ScopedWriteLockGL() {
   resource_provider_->UnlockForWrite(resource_id_);
 }
 
 void ResourceProvider::PopulateSkBitmapWithResource(
     SkBitmap* sk_bitmap, const Resource* resource) {
   DCHECK(resource->pixels);
@@ skipping 957 matching lines @@
   gl->GetIntegerv(GL_ACTIVE_TEXTURE, &active_unit);
   return active_unit;
 }
 
 GLES2Interface* ResourceProvider::ContextGL() const {
   ContextProvider* context_provider = output_surface_->context_provider();
   return context_provider ? context_provider->ContextGL() : NULL;
 }
 
 }  // namespace cc