cc: Dedup IPCs to return resources to client

content/browser/renderer_host/browser_compositor_view_mac.h

Index: content/browser/renderer_host/browser_compositor_view_mac.h
diff --git a/content/browser/renderer_host/browser_compositor_view_mac.h b/content/browser/renderer_host/browser_compositor_view_mac.h
index 119a3b36127ee636d0f4cca5fd235caffca6dba4..75651c4b4647d028f66f9cb0794cf0a17c342f5e 100644
--- a/content/browser/renderer_host/browser_compositor_view_mac.h
+++ b/content/browser/renderer_host/browser_compositor_view_mac.h
@@ -26,12 +26,10 @@ class BrowserCompositorMacClient {
  public:
   virtual NSView* BrowserCompositorMacGetNSView() const = 0;
   virtual SkColor BrowserCompositorMacGetGutterColor(SkColor color) const = 0;
-  virtual void BrowserCompositorMacSendCompositorSwapAck(
-      int output_surface_id,
-      const cc::CompositorFrameAck& ack) = 0;
   virtual void BrowserCompositorMacSendReclaimCompositorResources(
       int output_surface_id,
-      const cc::CompositorFrameAck& ack) = 0;
+      bool is_swap_ack,
+      const cc::ReturnedResourceArray& resources) = 0;
   virtual void BrowserCompositorMacOnLostCompositorResources() = 0;
   virtual void BrowserCompositorMacUpdateVSyncParameters(
       const base::TimeTicks& timebase,
@@ -111,12 +109,10 @@ class BrowserCompositorMac : public cc::BeginFrameObserver,
   std::unique_ptr<ResizeLock> DelegatedFrameHostCreateResizeLock(
       bool defer_compositor_lock) override;
   void DelegatedFrameHostResizeLockWasReleased() override;
-  void DelegatedFrameHostSendCompositorSwapAck(
-      int output_surface_id,
-      const cc::CompositorFrameAck& ack) override;
   void DelegatedFrameHostSendReclaimCompositorResources(
       int output_surface_id,
-      const cc::CompositorFrameAck& ack) override;
+      bool is_swap_ack,
+      const cc::ReturnedResourceArray& resources) override;
   void DelegatedFrameHostOnLostCompositorResources() override;
   void DelegatedFrameHostUpdateVSyncParameters(
       const base::TimeTicks& timebase,