Clean up cc/paint interfaces

cc/layers/picture_image_layer.cc

Index: cc/layers/picture_image_layer.cc
diff --git a/cc/layers/picture_image_layer.cc b/cc/layers/picture_image_layer.cc
index b595f937abe0d9df8a1c77d0e435e9dd6d5a3fda..c219d8d906dd5ad27961f9027c2b39543d2c59b6 100644
--- a/cc/layers/picture_image_layer.cc
+++ b/cc/layers/picture_image_layer.cc
@@ -75,7 +75,7 @@ scoped_refptr<DisplayItemList> PictureImageLayer::PaintContentsToDisplayList(
   // Because Android WebView resourceless software draw mode rasters directly
   // to the root canvas, this draw must use the kSrcOver_Mode so that
   // transparent images blend correctly.
-  canvas->drawImage(image_.get(), 0, 0);
+  canvas->drawImage(image_, 0, 0);
 
   display_list->CreateAndAppendDrawingItem<DrawingDisplayItem>(
       PaintableRegion(), recorder.finishRecordingAsPicture());