Remove the default format from ResourcePool.

cc/resources/one_copy_tile_task_worker_pool.cc

Index: cc/resources/one_copy_tile_task_worker_pool.cc
diff --git a/cc/resources/one_copy_tile_task_worker_pool.cc b/cc/resources/one_copy_tile_task_worker_pool.cc
index d4a333fe0eccd7b8845014fb635f0c5be314f4d2..92d8e738435eb96c83ed9743613fedde4de9fde6 100644
--- a/cc/resources/one_copy_tile_task_worker_pool.cc
+++ b/cc/resources/one_copy_tile_task_worker_pool.cc
@@ -25,14 +25,14 @@ class RasterBufferImpl : public RasterBuffer {
   RasterBufferImpl(OneCopyTileTaskWorkerPool* worker_pool,
                    ResourceProvider* resource_provider,
                    ResourcePool* resource_pool,
+                   ResourceFormat resource_format,
                    const Resource* resource)
       : worker_pool_(worker_pool),
         resource_provider_(resource_provider),
         resource_pool_(resource_pool),
         resource_(resource),
         raster_resource_(
-            resource_pool->AcquireResource(resource->size(),
-                                           resource_pool->default_format())),
+            resource_pool->AcquireResource(resource->size(), resource_format)),
         lock_(new ResourceProvider::ScopedWriteLockGpuMemoryBuffer(
             resource_provider_,
             raster_resource_->id())),
@@ -105,10 +105,11 @@ scoped_ptr<TileTaskWorkerPool> OneCopyTileTaskWorkerPool::Create(
     TaskGraphRunner* task_graph_runner,
     ContextProvider* context_provider,
     ResourceProvider* resource_provider,
-    ResourcePool* resource_pool) {
+    ResourcePool* resource_pool,
+    ResourceFormat resource_format) {
   return make_scoped_ptr<TileTaskWorkerPool>(new OneCopyTileTaskWorkerPool(
       task_runner, task_graph_runner, context_provider, resource_provider,
-      resource_pool));
+      resource_pool, resource_format));
 }
 
 OneCopyTileTaskWorkerPool::OneCopyTileTaskWorkerPool(
@@ -116,13 +117,15 @@ OneCopyTileTaskWorkerPool::OneCopyTileTaskWorkerPool(
     TaskGraphRunner* task_graph_runner,
     ContextProvider* context_provider,
     ResourceProvider* resource_provider,
-    ResourcePool* resource_pool)
+    ResourcePool* resource_pool,
+    ResourceFormat resource_format)
     : task_runner_(task_runner),
       task_graph_runner_(task_graph_runner),
       namespace_token_(task_graph_runner->GetNamespaceToken()),
       context_provider_(context_provider),
       resource_provider_(resource_provider),
       resource_pool_(resource_pool),
+      resource_format_(resource_format),
       last_issued_copy_operation_(0),
       last_flushed_copy_operation_(0),
       lock_(),
@@ -251,9 +254,10 @@ void OneCopyTileTaskWorkerPool::CheckForCompletedTasks() {
 
 scoped_ptr<RasterBuffer> OneCopyTileTaskWorkerPool::AcquireBufferForRaster(
     const Resource* resource) {
-  DCHECK_EQ(resource->format(), resource_pool_->default_format());
+  DCHECK_EQ(resource->format(), resource_format_);
   return make_scoped_ptr<RasterBuffer>(
-      new RasterBufferImpl(this, resource_provider_, resource_pool_, resource));
+      new RasterBufferImpl(this, resource_provider_, resource_pool_,
+                           resource_format_, resource));
 }
 
 void OneCopyTileTaskWorkerPool::ReleaseBufferForRaster(