Implementing promise-based commit for driving OffscreenCanvas animations

content/browser/renderer_host/offscreen_canvas_compositor_frame_sink.cc

Index: content/browser/renderer_host/offscreen_canvas_compositor_frame_sink.cc
diff --git a/content/browser/renderer_host/offscreen_canvas_compositor_frame_sink.cc b/content/browser/renderer_host/offscreen_canvas_compositor_frame_sink.cc
index fa0d239bc05d35536838c8de711742e4014c82a3..05a8c7dcba297b63ec112d18970afad4e4d12c50 100644
--- a/content/browser/renderer_host/offscreen_canvas_compositor_frame_sink.cc
+++ b/content/browser/renderer_host/offscreen_canvas_compositor_frame_sink.cc
@@ -28,8 +28,11 @@ OffscreenCanvasCompositorFrameSink::OffscreenCanvasCompositorFrameSink(
     const cc::FrameSinkId& frame_sink_id,
     cc::SurfaceManager* surface_manager,
     cc::mojom::MojoCompositorFrameSinkClientPtr client)
-    : support_(this, surface_manager, frame_sink_id, nullptr, nullptr),
-      client_(std::move(client)) {}
+    // TODO(crbug.com/): Pass a valid display so that we can get OnBeginFrame

[Stephen White, 2016/12/21 15:14:43]

Nit: bug ID?

+    // notification to drive
+    : support_(this, surface_manager, frame_sink_id, nullptr /*display*/,
+        nullptr),
+    client_(std::move(client)) {}
 
 OffscreenCanvasCompositorFrameSink::~OffscreenCanvasCompositorFrameSink() {}