Make WebUI objects not derive from WebUI. WebUI objects own the controller. This is the ownership...

content/public/browser/web_contents.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_BROWSER_WEB_CONTENTS_H_
 #define CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/process_util.h"
@@ skipping 91 matching lines @@
   // Gets the current RenderViewHost for this tab.
   virtual RenderViewHost* GetRenderViewHost() const = 0;
 
   // Returns the currently active RenderWidgetHostView. This may change over
   // time and can be NULL (during setup and teardown).
   virtual RenderWidgetHostView* GetRenderWidgetHostView() const = 0;
 
   // The TabContentsView will never change and is guaranteed non-NULL.
   virtual TabContentsView* GetView() const = 0;
 
+  // Create a WebUI page for the given url. In most cases, this doesn't need to
+  // be called by embedders since content will create its own WebUI objects as
+  // necessary. However if the embedder wants to create its own WebUI object and
+  // keep track of it manually, it can use this.
+  virtual WebUI* CreateWebUI(const GURL& url) = 0;
+
   // Returns the committed WebUI if one exists, otherwise the pending one.
   // Callers who want to use the pending WebUI for the pending navigation entry
   // should use GetWebUIForCurrentState instead.
   virtual WebUI* GetWebUI() const = 0;
   virtual WebUI* GetCommittedWebUI() const = 0;
 
   // Tab navigation state ------------------------------------------------------
 
   // Returns the current navigation properties, which if a navigation is
   // pending may be provisional (e.g., the navigation could result in a
@@ skipping 230 matching lines @@
   // to see what it should do.
   virtual bool FocusLocationBarByDefault() = 0;
 
   // Focuses the location bar.
   virtual void SetFocusToLocationBar(bool select_all) = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_H_