cc: Set sync token on resource even if context is lost.

cc/test/test_compositor_frame_sink.cc

Index: cc/test/test_compositor_frame_sink.cc
diff --git a/cc/test/test_compositor_frame_sink.cc b/cc/test/test_compositor_frame_sink.cc
index 1037fba98a6a5c9c482c9f7985c795b92cb919ba..a77917e7b663f0edf18808860c7b89c0356a8f33 100644
--- a/cc/test/test_compositor_frame_sink.cc
+++ b/cc/test/test_compositor_frame_sink.cc
@@ -53,7 +53,7 @@ TestCompositorFrameSink::TestCompositorFrameSink(
         begin_frame_source.get(), task_runner,
         display_output_surface->capabilities().max_frames_pending));
   }
-  const bool context_shared_with_compositor =
+  display_context_shared_with_compositor_ =
       display_output_surface->context_provider() == context_provider();
   display_.reset(
       new Display(shared_bitmap_manager, gpu_memory_buffer_manager,
@@ -66,8 +66,7 @@ TestCompositorFrameSink::TestCompositorFrameSink(
   // the Display. But we allow tests to disable this to mimic an out-of-process
   // Display.
   capabilities_.can_force_reclaim_resources = !force_disable_reclaim_resources;
-  capabilities_.delegated_sync_points_required =
-      !context_shared_with_compositor;
+  capabilities_.delegated_sync_points_required = true;

[danakj, 2016/10/06 20:50:35]

Can you leave a comment explaining why this is being set true

[sunnyps, 2016/10/06 21:31:53]

Done.

 }
 
 TestCompositorFrameSink::~TestCompositorFrameSink() {
@@ -84,10 +83,9 @@ bool TestCompositorFrameSink::BindToClient(CompositorFrameSinkClient* client) {
     return false;
 
   // We want the Display's OutputSurface to hear about lost context, and since

[danakj, 2016/10/06 20:50:35]

and when this shares

[sunnyps, 2016/10/06 21:31:53]

Done.

-  // this shares a context with it (when delegated_sync_points_required is
-  // false), we should not be listening for lost context callbacks on the
-  // context here.
-  if (!capabilities_.delegated_sync_points_required && context_provider())
+  // this shares a context with it we should not be listening for lost context
+  // callbacks on the context here.
+  if (display_context_shared_with_compositor_ && context_provider())
     context_provider()->SetLostContextCallback(base::Closure());
 
   surface_manager_->RegisterFrameSinkId(frame_sink_id_);