1 files changed, 5 insertions, 2 deletions
diff --git a/chrome/renderer/command_buffer_proxy.cc b/chrome/renderer/command_buffer_proxy.cc
index 0cc1e6a..21eee90 100644
--- a/chrome/renderer/command_buffer_proxy.cc
+++ b/chrome/renderer/command_buffer_proxy.cc
@@ -34,14 +34,17 @@ CommandBufferProxy::~CommandBufferProxy() {
   }
 }
 
-void CommandBufferProxy::OnMessageReceived(const IPC::Message& message) {
+bool CommandBufferProxy::OnMessageReceived(const IPC::Message& message) {
+  bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(CommandBufferProxy, message)
     IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_UpdateState, OnUpdateState);
     IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_SwapBuffers, OnSwapBuffers);
     IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_NotifyRepaint,
                         OnNotifyRepaint);
-    IPC_MESSAGE_UNHANDLED_ERROR()
+    IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
+  DCHECK(handled);
+  return handled;
 }
 
 void CommandBufferProxy::OnChannelError() {