Allow transitions to WebUI pages which are extension urls (new tab page is the relevant example).

content/public/common/content_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 CONTENT_PUBLIC_COMMON_CONTENT_CLIENT_H_
 #define CONTENT_PUBLIC_COMMON_CONTENT_CLIENT_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 62 matching lines @@
 class CONTENT_EXPORT ContentClient {
  public:
   ContentClient();
   virtual ~ContentClient();
 
   ContentBrowserClient* browser() { return browser_; }
   ContentPluginClient* plugin() { return plugin_; }
   ContentRendererClient* renderer() { return renderer_; }
   ContentUtilityClient* utility() { return utility_; }
 
+  virtual void CustomStreamReset() {}
+  virtual void CustomStreamAddURL(const GURL& url, bool top_level_resource) {}

[Charlie Reis, 2012/08/02 18:39:26]

What are these for?

[Cris Neckar, 2012/08/02 19:08:26]

A totally different change... oops

+
   // Sets the currently active URL.  Use GURL() to clear the URL.
   virtual void SetActiveURL(const GURL& url) {}
 
   // Sets the data on the current gpu.
   virtual void SetGpuInfo(const content::GPUInfo& gpu_info) {}
 
   // Gives the embedder a chance to register its own pepper plugins.
   virtual void AddPepperPlugins(
       std::vector<content::PepperPluginInfo>* plugins) {}
 
@@ skipping 64 matching lines @@
   ContentPluginClient* plugin_;
   // The embedder API for participating in renderer logic.
   ContentRendererClient* renderer_;
   // The embedder API for participating in utility logic.
   ContentUtilityClient* utility_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_COMMON_CONTENT_CLIENT_H_