Add custom default theme support and create a managed user default theme.

chrome/browser/ui/gtk/gtk_theme_service.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_BROWSER_UI_GTK_GTK_THEME_SERVICE_H_
 #define CHROME_BROWSER_UI_GTK_GTK_THEME_SERVICE_H_
 
 #include <map>
 #include <vector>
 
@@ skipping 61 matching lines @@
   virtual void Init(Profile* profile) OVERRIDE;
   virtual gfx::ImageSkia* GetImageSkiaNamed(int id) const OVERRIDE;
   virtual gfx::Image GetImageNamed(int id) const OVERRIDE;
   virtual SkColor GetColor(int id) const OVERRIDE;
   virtual bool HasCustomImage(int id) const OVERRIDE;
   virtual void SetTheme(const extensions::Extension* extension) OVERRIDE;
   virtual void UseDefaultTheme() OVERRIDE;
   virtual void SetNativeTheme() OVERRIDE;
   virtual bool UsingDefaultTheme() const OVERRIDE;
   virtual bool UsingNativeTheme() const OVERRIDE;
+  virtual bool ShouldInitWithNativeTheme() OVERRIDE;
 
   // Creates a GtkChromeButton instance, registered with this theme provider,
   // with a "destroy" signal to remove it from our internal list when it goes
   // away.
   GtkWidget* BuildChromeButton();
 
   // Creates a GtkChromeLinkButton instance. We update its state as theme
   // changes, and listen for its destruction.
   GtkWidget* BuildChromeLinkButton(const std::string& text);
 
@@ skipping 217 matching lines @@
 
   // The default folder icon and default bookmark icon for the GTK theme.
   // These are static because the system can only have one theme at a time.
   // They are cached when they are requested the first time, and cleared when
   // the system theme changes.
   static base::LazyInstance<gfx::Image> default_folder_icon_;
   static base::LazyInstance<gfx::Image> default_bookmark_icon_;
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_GTK_THEME_SERVICE_H_