cc: Added raster source.

cc/resources/gpu_raster_worker_pool.cc

 // 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.
 
 #include "cc/resources/gpu_raster_worker_pool.h"
 
 #include <algorithm>
 
 #include "base/debug/trace_event.h"
 #include "cc/output/context_provider.h"
-#include "cc/resources/picture_pile_impl.h"
 #include "cc/resources/raster_buffer.h"
+#include "cc/resources/raster_source.h"
 #include "cc/resources/resource.h"
 #include "cc/resources/resource_provider.h"
 #include "cc/resources/scoped_gpu_raster.h"
 #include "gpu/command_buffer/client/gles2_interface.h"
 #include "third_party/skia/include/core/SkMultiPictureDraw.h"
 #include "third_party/skia/include/core/SkPictureRecorder.h"
 #include "third_party/skia/include/core/SkSurface.h"
 #include "third_party/skia/include/gpu/GrContext.h"
 
 namespace cc {
 namespace {
 
 class RasterBufferImpl : public RasterBuffer {
  public:
   RasterBufferImpl(ResourceProvider* resource_provider,
                    const Resource* resource,
                    SkMultiPictureDraw* multi_picture_draw,
                    bool use_distance_field_text)
       : lock_(resource_provider, resource->id()),
         resource_(resource),
         multi_picture_draw_(multi_picture_draw),
         use_distance_field_text_(use_distance_field_text) {}
 
   // Overridden from RasterBuffer:
-  void Playback(const PicturePileImpl* picture_pile,
+  void Playback(const RasterSource* raster_source,
                 const gfx::Rect& rect,
                 float scale,
                 RenderingStatsInstrumentation* stats) override {
     // Turn on distance fields for layers that have ever animated.
     bool use_distance_field_text =
         use_distance_field_text_ ||
-        picture_pile->likely_to_be_used_for_transform_animation();
+        raster_source->SuitableForDistanceFieldText();
     SkSurface* sk_surface = lock_.GetSkSurface(use_distance_field_text);
 
     if (!sk_surface)
       return;
 
     SkPictureRecorder recorder;
     gfx::Size size = resource_->size();
     skia::RefPtr<SkCanvas> canvas =
         skia::SharePtr(recorder.beginRecording(size.width(), size.height()));
 
     canvas->save();
-    picture_pile->RasterToBitmap(canvas.get(), rect, scale, stats);
+    raster_source->PlaybackToCanvas(canvas.get(), rect, scale, stats);
     canvas->restore();
 
     // Add the canvas and recorded picture to |multi_picture_draw_|.
     skia::RefPtr<SkPicture> picture = skia::AdoptRef(recorder.endRecording());
     multi_picture_draw_->add(sk_surface->getCanvas(), picture.get());
   }
 
  private:
   ResourceProvider::ScopedWriteLockGr lock_;
   const Resource* resource_;
@@ skipping 177 matching lines @@
 
   ScopedGpuRaster gpu_raster(context_provider_);
   task_graph_runner_->RunUntilIdle();
 
   // Draw each all of the pictures that were collected.  This will also clear
   // the pictures and canvases added to |multi_picture_draw_|
   multi_picture_draw_.draw();
 }
 
 }  // namespace cc