Implement video frame acknowledgements in the chromoting protocol.

remoting/client/plugin/pepper_video_renderer_3d.cc

Index: remoting/client/plugin/pepper_video_renderer_3d.cc
diff --git a/remoting/client/plugin/pepper_video_renderer_3d.cc b/remoting/client/plugin/pepper_video_renderer_3d.cc
index de2d65af737f1691758b7ade4b3a1928b1f96d10..e1370cc9aab0346f040d09b8c3ebfbdef7923ef5 100644
--- a/remoting/client/plugin/pepper_video_renderer_3d.cc
+++ b/remoting/client/plugin/pepper_video_renderer_3d.cc
@@ -6,6 +6,7 @@
 
 #include <math.h>
 
+#include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/stl_util.h"
 #include "ppapi/c/pp_codecs.h"
@@ -177,9 +178,11 @@ ChromotingStats* PepperVideoRenderer3D::GetStats() {
   return &stats_;
 }
 
-void PepperVideoRenderer3D::ProcessVideoPacket(scoped_ptr<VideoPacket> packet,
-                                               const base::Closure& done) {
-  base::ScopedClosureRunner done_runner(done);
+void PepperVideoRenderer3D::ProcessVideoPacket(
+    scoped_ptr<VideoPacket> packet,
+    const ProgressCallback& progress_callback) {
+  base::ScopedClosureRunner done_runner(
+      base::Bind(progress_callback, PacketProgress::DONE));
 
   // Don't need to do anything if the packet is empty. Host sends empty video
   // packets when the screen is not changing.