Remove the default format from ResourcePool.

cc/resources/gpu_tile_task_worker_pool.h

Index: cc/resources/gpu_tile_task_worker_pool.h
diff --git a/cc/resources/gpu_tile_task_worker_pool.h b/cc/resources/gpu_tile_task_worker_pool.h
index 5d35ef9c9baa2880932e54bfc5e7a542570bdc8b..a677c022a8346ecd825631349aa8cb23f7821168 100644
--- a/cc/resources/gpu_tile_task_worker_pool.h
+++ b/cc/resources/gpu_tile_task_worker_pool.h
@@ -19,10 +19,12 @@ class CC_EXPORT GpuTileTaskWorkerPool : public TileTaskWorkerPool,
 
   static scoped_ptr<TileTaskWorkerPool> Create(
       base::SequencedTaskRunner* task_runner,
-      TaskGraphRunner* task_graph_runner);
+      TaskGraphRunner* task_graph_runner,
+      ResourceFormat resource_format);

[reveman, 2015/01/22 23:01:46]

Can this just use resource_provider->best_texture_format() internally instead of
having to take a resource_format as parameter? I think that would be a bit more
consistent with other TileTaskWorkerPool implementations.

[peterp, 2015/01/23 13:19:06]

Then we have to pass in and store the ResourceProvider instead. But I guess it
doesn't really matter if we store a pointer to that instead of an enum, and
you're right, it would make it more consistent. I'll do that.

 
   // Overridden from TileTaskWorkerPool:
   TileTaskRunner* AsTileTaskRunner() override;
+  ResourceFormat GetResourceFormat() override;
 
   // Overridden from TileTaskRunner:
   void SetClient(TileTaskRunnerClient* client) override;
@@ -37,7 +39,8 @@ class CC_EXPORT GpuTileTaskWorkerPool : public TileTaskWorkerPool,
 
  private:
   GpuTileTaskWorkerPool(base::SequencedTaskRunner* task_runner,
-                        TaskGraphRunner* task_graph_runner);
+                        TaskGraphRunner* task_graph_runner,
+                        ResourceFormat resource_format);
 
   void OnTaskSetFinished(TaskSet task_set);
   void CompleteTasks(const Task::Vector& tasks);
@@ -46,6 +49,7 @@ class CC_EXPORT GpuTileTaskWorkerPool : public TileTaskWorkerPool,
   TaskGraphRunner* task_graph_runner_;
   const NamespaceToken namespace_token_;
   TileTaskRunnerClient* client_;
+  ResourceFormat resource_format_;
 
   TaskSetCollection tasks_pending_;