cc: Allocate resources on worker context.

cc/raster/gpu_raster_buffer_provider.cc

Index: cc/raster/gpu_raster_buffer_provider.cc
diff --git a/cc/raster/gpu_raster_buffer_provider.cc b/cc/raster/gpu_raster_buffer_provider.cc
index de489ff8fdee51ef924d4af97142ea7676b68467..cd118b11027b2e2b79b11840848e6ad083b6b91a 100644
--- a/cc/raster/gpu_raster_buffer_provider.cc
+++ b/cc/raster/gpu_raster_buffer_provider.cc
@@ -281,8 +281,7 @@ void GpuRasterBufferProvider::PlaybackOnWorkerThread(
   // Generate sync token after the barrier for cross context synchronization.
   gpu::SyncToken resource_sync_token;
   gl->GenUnverifiedSyncTokenCHROMIUM(fence_sync, resource_sync_token.GetData());
-  resource_lock->set_sync_token(resource_sync_token);
-  resource_lock->set_synchronized(!async_worker_context_enabled_);
+  resource_lock->UpdateSyncToken(resource_sync_token);
 }
 
 }  // namespace cc