(not for commit) Simplified multi-threaded Ganesh with lock on Flush only.

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 62 matching lines @@
   client_->DisplayDamaged();
 }
 
 void Display::InitializeRenderer() {
   if (resource_provider_)
     return;
 
   scoped_ptr<ResourceProvider> resource_provider = ResourceProvider::Create(
       output_surface_.get(), bitmap_manager_, gpu_memory_buffer_manager_,
       blocking_main_thread_task_runner_.get(), settings_.highp_threshold_min,
-      settings_.use_rgba_4444_textures,
+      settings_.use_rgba_4444_textures, false,
       settings_.texture_id_allocation_chunk_size);
   if (!resource_provider)
     return;
 
   if (output_surface_->context_provider()) {
     scoped_ptr<GLRenderer> renderer = GLRenderer::Create(
         this, &settings_, output_surface_.get(), resource_provider.get(),
         texture_mailbox_deleter_.get(), settings_.highp_threshold_min);
     if (!renderer)
       return;
@@ skipping 105 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