Reland Allow one-copy and zero-copy task tile worker pools to use compressed textures.

cc/raster/one_copy_tile_task_worker_pool.h

 // Copyright 2014 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.
 
 #ifndef CC_RASTER_ONE_COPY_TILE_TASK_WORKER_POOL_H_
 #define CC_RASTER_ONE_COPY_TILE_TASK_WORKER_POOL_H_
 
 #include <stdint.h>
 
 #include <deque>
@@ skipping 35 matching lines @@
   ~OneCopyTileTaskWorkerPool() override;
 
   static scoped_ptr<TileTaskWorkerPool> Create(
       base::SequencedTaskRunner* task_runner,
       TaskGraphRunner* task_graph_runner,
       ContextProvider* context_provider,
       ResourceProvider* resource_provider,
       int max_copy_texture_chromium_size,
       bool use_partial_raster,
       int max_staging_buffer_usage_in_bytes,
-      bool use_rgba_4444_texture_format);
+      ResourceFormat preferred_tile_format);
 
   // Overridden from TileTaskWorkerPool:
   TileTaskRunner* AsTileTaskRunner() override;
 
   // Overridden from TileTaskRunner:
   void Shutdown() override;
   void ScheduleTasks(TaskGraph* graph) override;
   void CheckForCompletedTasks() override;
   ResourceFormat GetResourceFormat(bool must_support_alpha) const override;
   bool GetResourceRequiresSwizzle(bool must_support_alpha) const override;
@@ skipping 21 matching lines @@
       uint64_t resource_content_id,
       uint64_t previous_content_id);
 
  protected:
   OneCopyTileTaskWorkerPool(base::SequencedTaskRunner* task_runner,
                             TaskGraphRunner* task_graph_runner,
                             ResourceProvider* resource_provider,
                             int max_copy_texture_chromium_size,
                             bool use_partial_raster,
                             int max_staging_buffer_usage_in_bytes,
-                            bool use_rgba_4444_texture_format);
+                            ResourceFormat preferred_tile_format);
 
  private:
   struct StagingBuffer {
     StagingBuffer(const gfx::Size& size, ResourceFormat format);
     ~StagingBuffer();
 
     void DestroyGLResources(gpu::gles2::GLES2Interface* gl);
     void OnMemoryDump(base::trace_event::ProcessMemoryDump* pmd,
                       ResourceFormat format,
                       bool is_free) const;
@@ skipping 36 matching lines @@
 
   mutable base::Lock lock_;
   // |lock_| must be acquired when accessing the following members.
   using StagingBufferSet = std::set<const StagingBuffer*>;
   StagingBufferSet buffers_;
   using StagingBufferDeque = std::deque<scoped_ptr<StagingBuffer>>;
   StagingBufferDeque free_buffers_;
   StagingBufferDeque busy_buffers_;
   int bytes_scheduled_since_last_flush_;
   const int max_staging_buffer_usage_in_bytes_;
-  bool use_rgba_4444_texture_format_;
+  ResourceFormat preferred_tile_format_;
   int staging_buffer_usage_in_bytes_;
   int free_staging_buffer_usage_in_bytes_;
   const base::TimeDelta staging_buffer_expiration_delay_;
   bool reduce_memory_usage_pending_;
   base::Closure reduce_memory_usage_callback_;
 
   base::WeakPtrFactory<OneCopyTileTaskWorkerPool> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(OneCopyTileTaskWorkerPool);
 };
 
 }  // namespace cc
 
 #endif  // CC_RASTER_ONE_COPY_TILE_TASK_WORKER_POOL_H_