Remove //chrome dependency from ExtensionPrefs

apps/shell/browser/shell_extensions_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_EXTENSIONS_BROWSER_CLIENT_H_
 #define APPS_SHELL_BROWSER_SHELL_EXTENSIONS_BROWSER_CLIENT_H_
 
 #include "base/compiler_specific.h"
 #include "extensions/browser/extensions_browser_client.h"
 
@@ skipping 41 matching lines @@
       OVERRIDE;
   virtual bool DidVersionUpdate(content::BrowserContext* context) OVERRIDE;
   virtual void PermitExternalProtocolHandler() OVERRIDE;
   virtual scoped_ptr<AppSorting> CreateAppSorting() OVERRIDE;
   virtual bool IsRunningInForcedAppMode() OVERRIDE;
   virtual ApiActivityMonitor* GetApiActivityMonitor(
       content::BrowserContext* context) OVERRIDE;
   virtual ExtensionSystemProvider* GetExtensionSystemFactory() OVERRIDE;
   virtual void RegisterExtensionFunctions(
       ExtensionFunctionRegistry* registry) const OVERRIDE;
+  virtual void AddExtensionPrefsObservers(content::BrowserContext* context,

[James Cook, 2014/04/01 18:45:03]

nit: In the interface could you put this next to GetPrefServiceForContext() so
all the prefs stuff is together?

[Ken Rockot(use gerrit already), 2014/04/01 21:34:59]

Done.

+                                          ExtensionPrefs* prefs) const OVERRIDE;
 
  private:
   // The single BrowserContext for app_shell. Not owned.
   content::BrowserContext* browser_context_;
 
   // Support for extension APIs.
   scoped_ptr<ExtensionsAPIClient> api_client_;
 
   // The PrefService for |browser_context_|.
   scoped_ptr<PrefService> prefs_;
 
   DISALLOW_COPY_AND_ASSIGN(ShellExtensionsBrowserClient);
 };
 
 }  // namespace extensions
 
 #endif  // APPS_SHELL_BROWSER_SHELL_EXTENSIONS_BROWSER_CLIENT_H_