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

chrome/browser/themes/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_THEMES_THEME_SERVICE_H_
 #define CHROME_BROWSER_THEMES_THEME_SERVICE_H_
 
 #include <map>
 #include <set>
 #include <string>
 #include <utility>
 
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/threading/non_thread_safe.h"
 #include "components/browser_context_keyed_service/browser_context_keyed_service.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "ui/base/theme_provider.h"
 
+class CustomThemeSupplier;
 class BrowserThemePack;
 class ThemeServiceTest;
 class ThemeSyncableService;
 class Profile;
 
 namespace base {
 class FilePath;
 }
 
 namespace color_utils {
@@ skipping 103 matching lines @@
   void RemoveUnusedThemes();
 
   // Returns the syncable service for syncing theme. The returned service is
   // owned by |this| object.
   virtual ThemeSyncableService* GetThemeSyncableService() const;
 
   // Save the images to be written to disk, mapping file path to id.
   typedef std::map<base::FilePath, int> ImagesDiskCache;
 
  protected:
+  // Set a custom default theme instead of the normal default theme.
+  virtual void SetCustomDefaultTheme(
+      scoped_refptr<CustomThemeSupplier> theme_supplier);
+
+  // If the native theme should be used as default.

[pkotwicz, 2013/07/19 18:33:20]

How about: "Returns true if the ThemeService should use the native theme on
startup."
The native theme is technically not the default because UsingDefaultTheme()
returns false if we are using the GTK+ native theme.

[Adrian Kuegel, 2013/07/22 12:58:08]

Done.

+  virtual bool ShouldInitWithNativeTheme();
+
   // Get the specified tint - |id| is one of the TINT_* enum values.
   color_utils::HSL GetTint(int id) const;
 
   // Clears all the override fields and saves the dictionary.
   virtual void ClearAllThemeData();
 
   // Load theme data from preferences.
   virtual void LoadThemePrefs();
 
   // Let all the browser views know that themes have changed.
   virtual void NotifyThemeChanged();
 
 #if defined(OS_MACOSX)
   // Let all the browser views know that themes have changed in a platform way.
   virtual void NotifyPlatformThemeChanged();
 #endif  // OS_MACOSX
 
   // Clears the platform-specific caches. Do not call directly; it's called
   // from ClearCaches().
   virtual void FreePlatformCaches();
 
   Profile* profile() const { return profile_; }
 
   void set_ready() { ready_ = true; }
 
+  const CustomThemeSupplier* GetThemeSupplier() const {

[pkotwicz, 2013/07/19 18:33:20]

I think that get_theme_supplier() is the preferred style.

[Adrian Kuegel, 2013/07/22 12:58:08]

Done.

+    return theme_supplier_.get();
+  }
+
  private:
   friend class ThemeServiceTest;
 
+  // Replace the current theme supplier with a new one and call StopUsingTheme
+  // or StartUsingTheme as appropriate.

[pkotwicz, 2013/07/19 18:33:20]

Nit: StartUsingTheme(), StopUsingTheme().

[Adrian Kuegel, 2013/07/22 12:58:08]

Done.

+  void SwapThemeSupplier(scoped_refptr<CustomThemeSupplier> theme_supplier);
+
   // Migrate the theme to the new theme pack schema by recreating the data pack
   // from the extension.
   void MigrateTheme();
 
   // Saves the filename of the cached theme pack.
   void SavePackName(const base::FilePath& pack_path);
 
   // Save the id of the last theme installed.
   void SaveThemeID(const std::string& id);
 
   // Implementation of SetTheme() (and the fallback from LoadThemePrefs() in
   // case we don't have a theme pack).
   void BuildFromExtension(const extensions::Extension* extension);
 
   // Returns true if the profile belongs to a managed user.
   bool IsManagedUser() const;
 
+  void SetManagedUserTheme();

[pkotwicz, 2013/07/19 18:33:20]

Add a comment here.

[Adrian Kuegel, 2013/07/22 12:58:08]

Done.

+
 #if defined(TOOLKIT_GTK)
   // Loads an image and flips it horizontally if |rtl_enabled| is true.
   GdkPixbuf* GetPixbufImpl(int id, bool rtl_enabled) const;
 #endif
 
 #if defined(TOOLKIT_GTK)
   typedef std::map<int, GdkPixbuf*> GdkPixbufMap;
   mutable GdkPixbufMap gdk_pixbufs_;
 #elif defined(OS_MACOSX)
   typedef std::map<int, NSImage*> NSImageMap;
   mutable NSImageMap nsimage_cache_;
 
   // The bool member of the pair is whether the color is a default color.
   typedef std::map<int, std::pair<NSColor*, bool> > NSColorMap;
   mutable NSColorMap nscolor_cache_;
 
   typedef std::map<int, NSGradient*> NSGradientMap;
   mutable NSGradientMap nsgradient_cache_;
 #endif
 
   ui::ResourceBundle& rb_;
   Profile* profile_;
 
   // True if the theme service is ready to be used.
   // TODO(pkotwicz): Add DCHECKS to the theme service's getters once
   // ThemeSource no longer uses the ThemeService when it is not ready.
   bool ready_;
 
-  scoped_refptr<BrowserThemePack> theme_pack_;
+  scoped_refptr<CustomThemeSupplier> theme_supplier_;
 
   // The number of infobars currently displayed.
   int number_of_infobars_;
 
   content::NotificationRegistrar registrar_;
 
   scoped_ptr<ThemeSyncableService> theme_syncable_service_;
 
   DISALLOW_COPY_AND_ASSIGN(ThemeService);
 };
 
 #endif  // CHROME_BROWSER_THEMES_THEME_SERVICE_H_