Replace usage of SurfaceId's client_id with FrameSinkId

content/browser/renderer_host/render_widget_host_view_mac.h

Index: content/browser/renderer_host/render_widget_host_view_mac.h
diff --git a/content/browser/renderer_host/render_widget_host_view_mac.h b/content/browser/renderer_host/render_widget_host_view_mac.h
index 75ad48f87d672eb3b211f8fd0d60174aa5c91f5e..289246d08be9442e603bad4530cedbf478a6cc60 100644
--- a/content/browser/renderer_host/render_widget_host_view_mac.h
+++ b/content/browser/renderer_host/render_widget_host_view_mac.h
@@ -327,10 +327,10 @@ class CONTENT_EXPORT RenderWidgetHostViewMac
   std::unique_ptr<SyntheticGestureTarget> CreateSyntheticGestureTarget()
       override;
 
-  uint32_t GetSurfaceClientId() override;
-  uint32_t SurfaceClientIdAtPoint(cc::SurfaceHittestDelegate* delegate,
-                                  const gfx::Point& point,
-                                  gfx::Point* transformed_point) override;
+  cc::FrameSinkId GetFrameSinkId() override;
+  cc::FrameSinkId FrameSinkIdAtPoint(cc::SurfaceHittestDelegate* delegate,
+                                     const gfx::Point& point,
+                                     gfx::Point* transformed_point) override;
   // Returns true when we can do SurfaceHitTesting for the event type.
   bool ShouldRouteEvent(const blink::WebInputEvent& event) const;
   void ProcessMouseEvent(const blink::WebMouseEvent& event,