cc: Split ReleaseResources into Release and Recreate.

cc/layers/layer_impl.h

Index: cc/layers/layer_impl.h
diff --git a/cc/layers/layer_impl.h b/cc/layers/layer_impl.h
index 5d668d9c40aa6ee6100a2d72b1453101fac3d80a..96f915feb414c5d261ab2bea0a4a3ab88c56874d 100644
--- a/cc/layers/layer_impl.h
+++ b/cc/layers/layer_impl.h
@@ -547,6 +547,10 @@ class CC_EXPORT LayerImpl : public LayerAnimationValueObserver,
   // that rendered this layer was lost or a rendering mode switch has occured.
   virtual void ReleaseResources();
 
+  // Recreate resources that are required after they were released by a
+  // ReleaseResources call.
+  virtual void RecreateResources();
+
   ScrollbarAnimationController* scrollbar_animation_controller() const {
     return scrollbar_animation_controller_.get();
   }