Support webview tag when the container extension is embedded in a webUI

chrome/renderer/chrome_content_renderer_client.h

 // 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.
 
 #ifndef CHROME_RENDERER_CHROME_CONTENT_RENDERER_CLIENT_H_
 #define CHROME_RENDERER_CHROME_CONTENT_RENDERER_CLIENT_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 155 matching lines @@
   // http://crbug.com/100411
   static bool IsAdblockInstalled();
   static bool IsAdblockPlusInstalled();
   static bool IsAdblockWithWebRequestInstalled();
   static bool IsAdblockPlusWithWebRequestInstalled();
   static bool IsOtherExtensionWithWebRequestInstalled();
 
  private:
   FRIEND_TEST_ALL_PREFIXES(ChromeContentRendererClientTest, NaClRestriction);
 
-  const extensions::Extension* GetExtension(
+  // Gets extension by the given origin, regardless of whether the extension
+  // is active in the current process.
+  const extensions::Extension* GetExtensionByOrigin(
       const WebKit::WebSecurityOrigin& origin) const;
 
   // Returns true if the frame is navigating to an URL either into or out of an
   // extension app's extent.
   bool CrossesExtensionExtents(WebKit::WebFrame* frame,
                                const GURL& new_url,
                                const ExtensionSet& extensions,
                                bool is_extension_url,
                                bool is_initial_navigation);
 
@@ skipping 22 matching lines @@
 #endif
 
 #if defined(ENABLE_PLUGINS)
   std::set<std::string> allowed_file_handle_origins_;
 #endif
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_RENDERER_CHROME_CONTENT_RENDERER_CLIENT_H_