cc: Gather and lock/unlock SkDiscardablePixelRefs instead of skia::LazyPixelRefs.

cc/resources/raster_worker_pool.h

 // Copyright 2013 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_RESOURCES_RASTER_WORKER_POOL_H_
 #define CC_RESOURCES_RASTER_WORKER_POOL_H_
 
 #include <vector>
 
 #include "base/containers/hash_tables.h"
 #include "cc/debug/rendering_stats_instrumentation.h"
 #include "cc/resources/picture_pile_impl.h"
 #include "cc/resources/raster_mode.h"
 #include "cc/resources/resource.h"
 #include "cc/resources/resource_provider.h"
 #include "cc/resources/tile_priority.h"
 #include "cc/resources/worker_pool.h"
 #include "third_party/khronos/GLES2/gl2.h"
 
-namespace skia {
-class LazyPixelRef;
-}
+class SkPixelRef;
 
 namespace cc {
 namespace internal {
 
 class CC_EXPORT RasterWorkerPoolTask
     : public base::RefCounted<RasterWorkerPoolTask> {
  public:
   typedef std::vector<scoped_refptr<WorkerPoolTask> > TaskVector;
 
   // Returns true if |buffer| was written to. False indicate that
@@ skipping 164 matching lines @@
       RasterMode raster_mode,
       TileResolution tile_resolution,
       int layer_id,
       const void* tile_id,
       int source_frame_number,
       RenderingStatsInstrumentation* rendering_stats,
       const RasterTask::Reply& reply,
       Task::Set* dependencies);
 
   static Task CreateImageDecodeTask(
-      skia::LazyPixelRef* pixel_ref,
+      SkPixelRef* pixel_ref,
       int layer_id,
       RenderingStatsInstrumentation* stats_instrumentation,
       const Task::Reply& reply);
 
  protected:
   typedef std::vector<scoped_refptr<internal::WorkerPoolTask> > TaskVector;
   typedef std::vector<scoped_refptr<internal::RasterWorkerPoolTask> >
       RasterTaskVector;
   typedef base::hash_set<internal::RasterWorkerPoolTask*> RasterTaskSet;
   typedef internal::RasterWorkerPoolTask* TaskMapKey;
@@ skipping 55 matching lines @@
 
   scoped_refptr<internal::WorkerPoolTask> raster_finished_task_;
   scoped_refptr<internal::WorkerPoolTask>
       raster_required_for_activation_finished_task_;
   base::WeakPtrFactory<RasterWorkerPool> weak_ptr_factory_;
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_RASTER_WORKER_POOL_H_