Fix cpplint errors in cc/(animation|input|layers|trees|test)/

cc/layers/delegated_renderer_layer_impl.h

Index: cc/layers/delegated_renderer_layer_impl.h
diff --git a/cc/layers/delegated_renderer_layer_impl.h b/cc/layers/delegated_renderer_layer_impl.h
index d768ea6f41dbdabf93a67fa83e7f0c4a06ee2d9f..b5e24679b07b0d12226a8e56a9aa36ea49a7f50d 100644
--- a/cc/layers/delegated_renderer_layer_impl.h
+++ b/cc/layers/delegated_renderer_layer_impl.h
@@ -22,7 +22,8 @@ class CC_EXPORT DelegatedRendererLayerImpl : public LayerImpl {
   virtual ~DelegatedRendererLayerImpl();
 
   // LayerImpl overrides.
-  virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl*) OVERRIDE;
+  virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl)
+      OVERRIDE;
   virtual bool HasDelegatedContent() const OVERRIDE;
   virtual bool HasContributingDelegatedRenderPasses() const OVERRIDE;
   virtual RenderPass::Id FirstContributingRenderPassId() const OVERRIDE;
@@ -87,6 +88,6 @@ class CC_EXPORT DelegatedRendererLayerImpl : public LayerImpl {
   int child_id_;
 };
 
-}
+}  // namespace cc
 
 #endif  // CC_LAYERS_DELEGATED_RENDERER_LAYER_IMPL_H_