Fix a regression in Canary which caused flash to not render.

Fixes bug http://code.google.com/p/chromium-os/issues/detail?id=22018

BUG=chromium-os:22018
Review URL: http://codereview.chromium.org/8382024

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@107023 0039d316-1c4b-4281-b951-d872f2087c98

ppapi/proxy/ppb_url_loader_proxy.cc

@@ -435,6 +435,8 @@ bool PPB_URLLoader_Proxy::OnMessageReceived(const IPC::Message& msg) {
                         OnMsgUpdateProgress)
     IPC_MESSAGE_HANDLER(PpapiMsg_PPBURLLoader_ReadResponseBody_Ack,
                         OnMsgReadResponseBodyAck)
+    IPC_MESSAGE_HANDLER(PpapiMsg_PPBURLLoader_CallbackComplete,
+                        OnMsgCallbackComplete)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   // TODO(brettw) handle bad messages!