Pass returned resources to DidReceiveCompositorFrameAck

cc/ipc/mojo_compositor_frame_sink.mojom

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 module cc.mojom;
 
 import "cc/ipc/begin_frame_args.mojom";
 import "cc/ipc/compositor_frame.mojom";
 import "cc/ipc/copy_output_request.mojom";
 import "cc/ipc/frame_sink_id.mojom";
@@ skipping 34 matching lines @@
 };
 
 interface MojoCompositorFrameSinkClient {
   // Notification that the previous CompositorFrame given to
   // SubmitCompositorFrame() has been processed and that another frame
   // can be submitted. This provides backpressure from the display compositor
   // so that frames are submitted only at the rate it can handle them.
   // TODO(fsamuel): This method ought not be necessary with unified BeginFrame.
   // However, there's a fair amount of cleanup and refactoring necessary to get
   // rid of it.
-  DidReceiveCompositorFrameAck();
+  DidReceiveCompositorFrameAck(ReturnedResourceArray resources);

[piman, 2017/04/11 21:41:50]

nit: this used to be the IPC version, and fsamuel had merged the corresponding
IPC into ReclaimResources, by adding a bool is_ack.

I really don't mind either way, just if you're looking for consistency (it may
make some adapters simpler).

 
   // Notification for the client to generate a CompositorFrame.
   OnBeginFrame(BeginFrameArgs args);
 
   // Returns resources sent to SubmitCompositorFrame to be reused or freed.
   ReclaimResources(ReturnedResourceArray resources);
 };
 
 // MojoCompositorFrameSinkPrivate is used by the display compositor host to
 // perform privilieged operations on a CompositorFrameSink such as
 // CopyOutputRequests.
 interface MojoCompositorFrameSinkPrivate {
   // Claims this FrameSinkId will embed |surface_id| so it should own the
   // temporary reference to |surface_id|.
   ClaimTemporaryReference(SurfaceId surface_id);
 
   // Requests that the renderer send back a copy of the surface that this
   // CompositorFrameSink submits to. The result can be in form of a bitmap
   // or a texture. See cc::CopyOutputRequest.
   RequestCopyOfSurface(cc.mojom.CopyOutputRequest request);
 };