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

cc/resources/raster_worker_pool_perftest.cc

Index: cc/resources/raster_worker_pool_perftest.cc
diff --git a/cc/resources/raster_worker_pool_perftest.cc b/cc/resources/raster_worker_pool_perftest.cc
index 74bb988144302924e60580c49cb1eb109577ab5a..64b100d59b1989b9ea7fbfdc8f76b5c81300fd10 100644
--- a/cc/resources/raster_worker_pool_perftest.cc
+++ b/cc/resources/raster_worker_pool_perftest.cc
@@ -122,10 +122,10 @@ class PerfRasterTaskImpl : public RasterTask {
 
   // Overridden from RasterizerTask:
   virtual void ScheduleOnOriginThread(RasterizerTaskClient* client) OVERRIDE {
-    client->AcquireCanvasForRaster(this);
+    client->AcquireBufferForRaster(this);
   }
   virtual void CompleteOnOriginThread(RasterizerTaskClient* client) OVERRIDE {
-    client->ReleaseCanvasForRaster(this);
+    client->ReleaseBufferForRaster(this);
   }
   virtual void RunReplyOnOriginThread() OVERRIDE { Reset(); }