Added methods to generate sync tokens for resource id(s).

cc/layers/video_layer_impl.cc

 // Copyright 2011 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/layers/video_layer_impl.h"
 
 #include <stddef.h>
 
 #include "base/bind.h"
 #include "base/logging.h"
@@ skipping 106 matching lines @@
     software_resources_ = external_resources.software_resources;
     software_release_callback_ =
         external_resources.software_release_callback;
     return true;
   }
   frame_resource_offset_ = external_resources.offset;
   frame_resource_multiplier_ = external_resources.multiplier;
 
   DCHECK_EQ(external_resources.mailboxes.size(),
             external_resources.release_callbacks.size());
+  ResourceProvider::ResourceIdArray resource_ids;

[piman, 2016/02/17 22:47:04]

nit: resource_ids.reserve(external_resources.mailboxes.size()); to avoid
reallocs.

[David Yen, 2016/02/17 22:52:53]

Done.

   for (size_t i = 0; i < external_resources.mailboxes.size(); ++i) {
     unsigned resource_id = resource_provider->CreateResourceFromTextureMailbox(
         external_resources.mailboxes[i],
         SingleReleaseCallbackImpl::Create(
             external_resources.release_callbacks[i]),
         external_resources.read_lock_fences_enabled);
     frame_resources_.push_back(FrameResource(
         resource_id, external_resources.mailboxes[i].size_in_pixels(),
         external_resources.mailboxes[i].is_overlay_candidate()));
+    resource_ids.push_back(resource_id);
   }
+  resource_provider->GenerateSyncTokenForResources(resource_ids);
 
   return true;
 }
 
 void VideoLayerImpl::AppendQuads(RenderPass* render_pass,
                                  AppendQuadsData* append_quads_data) {
   DCHECK(frame_.get());
 
   gfx::Transform transform = DrawTransform();
   gfx::Size rotated_size = bounds();
@@ skipping 262 matching lines @@
 void VideoLayerImpl::SetNeedsRedraw() {
   SetUpdateRect(gfx::UnionRects(update_rect(), gfx::Rect(bounds())));
   layer_tree_impl()->SetNeedsRedraw();
 }
 
 const char* VideoLayerImpl::LayerTypeAsString() const {
   return "cc::VideoLayerImpl";
 }
 
 }  // namespace cc