Adds support for calling postMessage on a frame living in a different renderer.

content/common/swapped_out_messages.cc

 // Copyright (c) 2012 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.
 
 #include "content/common/swapped_out_messages.h"
 
 #include "content/common/accessibility_messages.h"
 #include "content/common/view_messages.h"
 #include "content/public/common/content_client.h"
 
@@ skipping 12 matching lines @@
     case ViewHostMsg_OpenURL::ID:
     case ViewHostMsg_Focus::ID:
     // Handled by RenderView.
     case ViewHostMsg_RenderViewGone::ID:
     case ViewHostMsg_ShouldClose_ACK::ID:
     case ViewHostMsg_SwapOut_ACK::ID:
     case ViewHostMsg_ClosePage_ACK::ID:
     case ViewHostMsg_DomOperationResponse::ID:
     // Allow cross-process JavaScript calls.
     case ViewHostMsg_RouteCloseEvent::ID:
+    case ViewHostMsg_RouteMessageEvent::ID:
       return true;
     default:
       break;
   }
 
   return false;
 }
 
 bool SwappedOutMessages::CanHandleWhileSwappedOut(
     const IPC::Message& msg) {
@@ skipping 35 matching lines @@
     default:
       break;
   }
 
   // Check with the embedder as well.
   ContentClient* client = GetContentClient();
   return client->CanHandleWhileSwappedOut(msg);
 }
 
 }  // namespace content