Fork cc::OutputSurface into cc::CompositorFrameSink.

content/browser/renderer_host/render_widget_host_view_mac.mm

Index: content/browser/renderer_host/render_widget_host_view_mac.mm
diff --git a/content/browser/renderer_host/render_widget_host_view_mac.mm b/content/browser/renderer_host/render_widget_host_view_mac.mm
index 297b793237219acb0cdc4d5e31b72578815c53d8..e2034b0e06c37ce327a048b722cdd5db525c823a 100644
--- a/content/browser/renderer_host/render_widget_host_view_mac.mm
+++ b/content/browser/renderer_host/render_widget_host_view_mac.mm
@@ -400,12 +400,12 @@ SkColor RenderWidgetHostViewMac::BrowserCompositorMacGetGutterColor(
 
 void RenderWidgetHostViewMac::
     BrowserCompositorMacSendReclaimCompositorResources(
-        int output_surface_id,
+        int compositor_frame_sink_id,
         bool is_swap_ack,
         const cc::ReturnedResourceArray& resources) {
   render_widget_host_->Send(new ViewMsg_ReclaimCompositorResources(
-      render_widget_host_->GetRoutingID(), output_surface_id, is_swap_ack,
-      resources));
+      render_widget_host_->GetRoutingID(), compositor_frame_sink_id,
+      is_swap_ack, resources));
 }
 
 void RenderWidgetHostViewMac::BrowserCompositorMacOnLostCompositorResources() {
@@ -1311,8 +1311,9 @@ bool RenderWidgetHostViewMac::HasAcceleratedSurface(
   return false;
 }
 
-void RenderWidgetHostViewMac::OnSwapCompositorFrame(uint32_t output_surface_id,
-                                                    cc::CompositorFrame frame) {
+void RenderWidgetHostViewMac::OnSwapCompositorFrame(
+    uint32_t compositor_frame_sink_id,
+    cc::CompositorFrame frame) {
   TRACE_EVENT0("browser", "RenderWidgetHostViewMac::OnSwapCompositorFrame");
 
   last_scroll_offset_ = frame.metadata.root_scroll_offset;
@@ -1320,7 +1321,7 @@ void RenderWidgetHostViewMac::OnSwapCompositorFrame(uint32_t output_surface_id,
   page_at_minimum_scale_ =
       frame.metadata.page_scale_factor == frame.metadata.min_page_scale_factor;
   if (frame.delegated_frame_data) {
-    browser_compositor_->SwapCompositorFrame(output_surface_id,
+    browser_compositor_->SwapCompositorFrame(compositor_frame_sink_id,
                                              std::move(frame));
     UpdateDisplayVSyncParameters();
   } else {