Extract minimal RenderViewHost interface for embedders, leaving

chrome/renderer/extensions/chrome_v8_extension_handler.h

Index: chrome/renderer/extensions/chrome_v8_extension_handler.h
diff --git a/chrome/renderer/extensions/chrome_v8_extension_handler.h b/chrome/renderer/extensions/chrome_v8_extension_handler.h
index edeb5187395f1cab6f9093b5dd55fc9856a0d2b1..f933fc9eee703993996d832f3a370a091bf06d81 100644
--- a/chrome/renderer/extensions/chrome_v8_extension_handler.h
+++ b/chrome/renderer/extensions/chrome_v8_extension_handler.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -27,7 +27,7 @@ class ChromeV8ExtensionHandler : public IPC::Channel::Listener {
 
  protected:
   explicit ChromeV8ExtensionHandler(ChromeV8Context* context);
-  int GetRoutingId();
+  int GetRoutingID();
   void Send(IPC::Message* message);
   ChromeV8Context* context_;