blimp: Make Blimp client use a Display for compositing.

blimp/client/feature/compositor/blimp_compositor_manager.cc

 // Copyright 2016 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 "blimp/client/feature/compositor/blimp_compositor_manager.h"
 
 #include "base/lazy_instance.h"
 #include "base/memory/ptr_util.h"
 #include "blimp/client/core/compositor/blob_image_serialization_processor.h"
 #include "blimp/client/feature/compositor/blimp_layer_tree_settings.h"
@@ skipping 117 matching lines @@
 
     // TODO(khushalsagar): The server should selectively send only those
     // LayerTreeSettings which should remain consistent across the server and
     // client. Since it currently overrides all settings, ignore them.
     // See crbug/577985.
     GenerateLayerTreeSettings(settings_.get());
     settings_
       ->abort_commit_before_output_surface_creation = false;
     settings_->renderer_settings.buffer_to_texture_target_map =
         BlimpGpuMemoryBufferManager::GetDefaultBufferToTextureTargetMap();
+    settings_->use_output_surface_begin_frame_source = true;
   }
 
   return settings_.get();
 }
 
 void BlimpCompositorManager::DidCompleteSwapBuffers() {
   DCHECK(client_);
   client_->OnSwapBuffersCompleted();
 }
 
@@ skipping 57 matching lines @@
 
 BlimpCompositor* BlimpCompositorManager::GetCompositor(int render_widget_id) {
   CompositorMap::const_iterator it = compositors_.find(render_widget_id);
   if (it == compositors_.end())
     return nullptr;
   return it->second.get();
 }
 
 }  // namespace client
 }  // namespace blimp