Revert of cc: Make scheduling be driven by vsync for android webview.

cc/surfaces/display.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/surfaces/display.h"
 
 #include "base/message_loop/message_loop.h"
 #include "base/trace_event/trace_event.h"
 #include "cc/debug/benchmark_instrumentation.h"
 #include "cc/output/compositor_frame.h"
@@ skipping 178 matching lines @@
 
 void Display::CommitVSyncParameters(base::TimeTicks timebase,
                                     base::TimeDelta interval) {
   client_->CommitVSyncParameters(timebase, interval);
 }
 
 void Display::SetMemoryPolicy(const ManagedMemoryPolicy& policy) {
   client_->SetMemoryPolicy(policy);
 }
 
-void Display::OnDraw() {
-  NOTREACHED();
-}
-
 void Display::OnSurfaceDamaged(SurfaceId surface_id, bool* changed) {
   if (aggregator_ &&
       aggregator_->previous_contained_surfaces().count(surface_id)) {
     Surface* surface = manager_->GetSurfaceForId(surface_id);
     if (surface) {
       const CompositorFrame* current_frame = surface->GetEligibleFrame();
       if (!current_frame || !current_frame->delegated_frame_data ||
           !current_frame->delegated_frame_data->resource_list.size())
         aggregator_->ReleaseResources(surface_id);
     }
@@ skipping 11 matching lines @@
 
 int Display::GetMaxFramesPending() {
   int max_frames_pending =
       output_surface_ ? output_surface_->capabilities().max_frames_pending : 0;
   if (max_frames_pending <= 0)
     max_frames_pending = OutputSurface::DEFAULT_MAX_FRAMES_PENDING;
   return max_frames_pending;
 }
 
 }  // namespace cc