Prefix all IPC messages used by src\chrome with Chrome. For e.g ChromeViewMsg_, ChromeViewHostMsg...

chrome/renderer/external_host_bindings.cc

 // Copyright (c) 2011 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 "chrome/renderer/external_host_bindings.h"
 
 #include "base/values.h"
 #include "chrome/common/render_messages.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebBindings.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDocument.h"
@@ skipping 32 matching lines @@
         return;
       }
       target = resolved.spec();
     }
   } else {
     target = "*";
   }
 
   std::string origin = frame_->document().securityOrigin().toString().utf8();
 
-  result->Set(sender()->Send(new ViewHostMsg_ForwardMessageToExternalHost(
-      routing_id(), message, origin, target)));
+  result->Set(sender()->Send(
+      new ChromeViewHostMsg_ForwardMessageToExternalHost(
+          routing_id(), message, origin, target)));
 }
 
 bool ExternalHostBindings::ForwardMessageFromExternalHost(
     const std::string& message, const std::string& origin,
     const std::string& target) {
   if (!on_message_handler_.isObject())
     return false;
 
   bool status = false;
 
@@ skipping 106 matching lines @@
       DCHECK(success == false);
     } else {
       DCHECK(success != false);
       // Pass the ownership to the caller (don't call ReleaseVariantValue).
       *message_event = result.value.objectValue;
     }
   }
 
   return success;
 }