Move OmahaQueryParams to a component and add a delegate interface.

apps/shell/browser/shell_content_browser_client.h

 // Copyright 2013 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 APPS_SHELL_BROWSER_SHELL_CONTENT_BROWSER_CLIENT_H_
 #define APPS_SHELL_BROWSER_SHELL_CONTENT_BROWSER_CLIENT_H_
 
 #include "base/compiler_specific.h"
 #include "content/public/browser/content_browser_client.h"
 
 class GURL;
+class OmahaQueryParamsDelegate;
 
 namespace content {
 class BrowserContext;
 }
 
 namespace extensions {
 class Extension;
 }
 
 namespace apps {
@@ skipping 40 matching lines @@
   // Returns the extension or app associated with |site_instance| or NULL.
   const extensions::Extension* GetExtension(
       content::SiteInstance* site_instance);
 
   // Owned by content::BrowserMainLoop.
   ShellBrowserMainParts* browser_main_parts_;
 
   // Owned by ShellBrowserMainParts.
   ShellBrowserMainDelegate* browser_main_delegate_;
 
+  scoped_ptr<OmahaQueryParamsDelegate> omaha_query_params_delegate_;
+
   DISALLOW_COPY_AND_ASSIGN(ShellContentBrowserClient);
 };
 
 }  // namespace apps
 
 #endif  // APPS_SHELL_BROWSER_SHELL_CONTENT_BROWSER_CLIENT_H_