Revert of cc: Delete all the RendererCapabilities.

cc/trees/threaded_channel.h

Index: cc/trees/threaded_channel.h
diff --git a/cc/trees/threaded_channel.h b/cc/trees/threaded_channel.h
index a290a46397851f7713565f19e8bbc779849f06f8..06325efe509b8ee2cf1ba6bd40411ad8787b6547 100644
--- a/cc/trees/threaded_channel.h
+++ b/cc/trees/threaded_channel.h
@@ -117,12 +117,16 @@
 
   // ChannelImpl Implementation
   void DidCompleteSwapBuffers() override;
+  void SetRendererCapabilitiesMainCopy(
+      const RendererCapabilities& capabilities) override;
   void BeginMainFrameNotExpectedSoon() override;
   void DidCommitAndDrawFrame() override;
   void SetAnimationEvents(std::unique_ptr<AnimationEvents> events) override;
   void DidLoseOutputSurface() override;
   void RequestNewOutputSurface() override;
-  void DidInitializeOutputSurface(bool success) override;
+  void DidInitializeOutputSurface(
+      bool success,
+      const RendererCapabilities& capabilities) override;
   void DidCompletePageScaleAnimation() override;
   void BeginMainFrame(std::unique_ptr<BeginMainFrameAndCommitState>
                           begin_main_frame_state) override;