cc: Do bitmap conversion for RasterBuffer in the worker thread.

cc/resources/rasterizer.h

Index: cc/resources/rasterizer.h
diff --git a/cc/resources/rasterizer.h b/cc/resources/rasterizer.h
index 003e5e9fbd5ff83ab7b1c52bb274c61a7049f13b..a86235a3eacbd2ea9266a48af78378b67300541c 100644
--- a/cc/resources/rasterizer.h
+++ b/cc/resources/rasterizer.h
@@ -11,8 +11,6 @@
 #include "cc/resources/resource_format.h"
 #include "cc/resources/task_graph_runner.h"
 
-class SkCanvas;
-
 namespace cc {
 class ImageDecodeTask;
 class RasterTask;
@@ -77,14 +75,18 @@ class CC_EXPORT RasterTask : public RasterizerTask {
 
   const Resource* resource() const { return resource_; }
   const ImageDecodeTask::Vector& dependencies() const { return dependencies_; }
+  bool content_has_changed() const { return content_has_changed_; }

[reveman, 2014/08/13 19:19:49]

I don't think we need to add this. See my other comments.

[auygun, 2014/08/14 10:35:42]

Done.

 
  protected:
   RasterTask(const Resource* resource, ImageDecodeTask::Vector* dependencies);
   virtual ~RasterTask();
 
+  void set_content_has_changed(bool content_has_changed);
+
  private:
   const Resource* resource_;
   ImageDecodeTask::Vector dependencies_;
+  bool content_has_changed_;
 };
 
 class CC_EXPORT RasterizerClient {