Revert of cc: Delete all the RendererCapabilities.

cc/trees/layer_tree_host_impl.h

Index: cc/trees/layer_tree_host_impl.h
diff --git a/cc/trees/layer_tree_host_impl.h b/cc/trees/layer_tree_host_impl.h
index a8770b94b97e82a5857a89de434d8f3dd8d3415a..d8f42d5575b58dc4ce349a7e1cf484146106f1dd 100644
--- a/cc/trees/layer_tree_host_impl.h
+++ b/cc/trees/layer_tree_host_impl.h
@@ -96,6 +96,7 @@
 // LayerTreeHost->Proxy callback interface.
 class LayerTreeHostImplClient {
  public:
+  virtual void UpdateRendererCapabilitiesOnImplThread() = 0;
   virtual void DidLoseOutputSurfaceOnImplThread() = 0;
   virtual void CommitVSyncParameters(base::TimeTicks timebase,
                                      base::TimeDelta interval) = 0;
@@ -421,6 +422,7 @@
   ImageDecodeController* image_decode_controller() {
     return image_decode_controller_.get();
   }
+  const RendererCapabilitiesImpl& GetRendererCapabilities() const;
 
   bool SwapBuffers(const FrameData& frame);
   virtual void WillBeginImplFrame(const BeginFrameArgs& args);