Support different formats in the same resource pool.

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 dcb8dea819d67073bf38150b98e4a658595c2b11..d4a333fe0eccd7b8845014fb635f0c5be314f4d2 100644
--- a/cc/resources/one_copy_tile_task_worker_pool.cc
+++ b/cc/resources/one_copy_tile_task_worker_pool.cc
@@ -30,7 +30,9 @@ class RasterBufferImpl : public RasterBuffer {
         resource_provider_(resource_provider),
         resource_pool_(resource_pool),
         resource_(resource),
-        raster_resource_(resource_pool->AcquireResource(resource->size())),
+        raster_resource_(
+            resource_pool->AcquireResource(resource->size(),
+                                           resource_pool->default_format())),
         lock_(new ResourceProvider::ScopedWriteLockGpuMemoryBuffer(
             resource_provider_,
             raster_resource_->id())),
@@ -249,7 +251,7 @@ void OneCopyTileTaskWorkerPool::CheckForCompletedTasks() {
 
 scoped_ptr<RasterBuffer> OneCopyTileTaskWorkerPool::AcquireBufferForRaster(
     const Resource* resource) {
-  DCHECK_EQ(resource->format(), resource_pool_->resource_format());
+  DCHECK_EQ(resource->format(), resource_pool_->default_format());
   return make_scoped_ptr<RasterBuffer>(
       new RasterBufferImpl(this, resource_provider_, resource_pool_, resource));
 }