Make IPC::Channel::Listener:OnMessageReceived have a return value indicating ...

chrome/browser/gpu_process_host_ui_shim.cc

Index: chrome/browser/gpu_process_host_ui_shim.cc
===================================================================
--- chrome/browser/gpu_process_host_ui_shim.cc	(revision 70108)
+++ chrome/browser/gpu_process_host_ui_shim.cc	(working copy)
@@ -63,13 +63,13 @@
   router_.RemoveRoute(routing_id);
 }
 
-void GpuProcessHostUIShim::OnMessageReceived(const IPC::Message& message) {
+bool GpuProcessHostUIShim::OnMessageReceived(const IPC::Message& message) {
   DCHECK(CalledOnValidThread());
 
   if (message.routing_id() == MSG_ROUTING_CONTROL)
-    OnControlMessageReceived(message);
-  else
-    router_.RouteMessage(message);
+    return OnControlMessageReceived(message);
+
+  return router_.RouteMessage(message);
 }
 
 void GpuProcessHostUIShim::CollectGraphicsInfoAsynchronously() {
@@ -119,7 +119,8 @@
   }
   host->ScheduleComposite();
 }
-void GpuProcessHostUIShim::OnControlMessageReceived(
+
+bool GpuProcessHostUIShim::OnControlMessageReceived(
     const IPC::Message& message) {
   DCHECK(CalledOnValidThread());
 
@@ -127,9 +128,10 @@
     IPC_MESSAGE_HANDLER(GpuHostMsg_GraphicsInfoCollected,
                         OnGraphicsInfoCollected)
 #if defined(OS_WIN)
-    IPC_MESSAGE_HANDLER(GpuHostMsg_ScheduleComposite,
-                        OnScheduleComposite);
+    IPC_MESSAGE_HANDLER(GpuHostMsg_ScheduleComposite, OnScheduleComposite);
 #endif
     IPC_MESSAGE_UNHANDLED_ERROR()
   IPC_END_MESSAGE_MAP()
+
+  return true;
 }