cc: Remove wtf includes from *LayerTextureUpdater headers

cc/caching_bitmap_canvas_layer_texture_updater.cc

Index: cc/caching_bitmap_canvas_layer_texture_updater.cc
diff --git a/cc/caching_bitmap_canvas_layer_texture_updater.cc b/cc/caching_bitmap_canvas_layer_texture_updater.cc
index 9225f4761bc4300358766b0ffa4aa6734bb6827c..59e61df15ca2ebab6289aaa964dfff5a0f8bc150 100644
--- a/cc/caching_bitmap_canvas_layer_texture_updater.cc
+++ b/cc/caching_bitmap_canvas_layer_texture_updater.cc
@@ -11,10 +11,11 @@
 
 namespace cc {
 
-PassRefPtr<CachingBitmapCanvasLayerTextureUpdater>
+scoped_refptr<CachingBitmapCanvasLayerTextureUpdater>
 CachingBitmapCanvasLayerTextureUpdater::Create(
     scoped_ptr<LayerPainterChromium> painter) {
-  return adoptRef(new CachingBitmapCanvasLayerTextureUpdater(painter.Pass()));
+  return make_scoped_refptr(new CachingBitmapCanvasLayerTextureUpdater(
+      painter.Pass()));
 }
 
 CachingBitmapCanvasLayerTextureUpdater::CachingBitmapCanvasLayerTextureUpdater(
@@ -23,6 +24,11 @@ CachingBitmapCanvasLayerTextureUpdater::CachingBitmapCanvasLayerTextureUpdater(
       pixels_did_change_(false) {
 }
 
+CachingBitmapCanvasLayerTextureUpdater::
+  ~CachingBitmapCanvasLayerTextureUpdater()
+{
+}
+
 void CachingBitmapCanvasLayerTextureUpdater::prepareToUpdate(
     const IntRect& content_rect,
     const IntSize& tile_size,