Revert of cc: Make LayerTreeTests use a DelegatingRenderer and Display.

android_webview/browser/surfaces_instance.h

Index: android_webview/browser/surfaces_instance.h
diff --git a/android_webview/browser/surfaces_instance.h b/android_webview/browser/surfaces_instance.h
index 5dec3d8b227f3fe22be40c2c18fe9d2a62b84c69..eb01f71402add51d94beeb9907f7c5313efc5758 100644
--- a/android_webview/browser/surfaces_instance.h
+++ b/android_webview/browser/surfaces_instance.h
@@ -61,10 +61,6 @@
   // cc::DisplayClient overrides.
   void DisplayOutputSurfaceLost() override {}
   void DisplaySetMemoryPolicy(const cc::ManagedMemoryPolicy& policy) override {}
-  void DisplayWillDrawAndSwap(
-      bool will_draw_and_swap,
-      const cc::RenderPassList& render_passes) override {}
-  void DisplayDidDrawAndSwap() override {}
 
   // cc::SurfaceFactoryClient implementation.
   void ReturnResources(const cc::ReturnedResourceArray& resources) override;