GTK: Fix profile selection bubble to match the chrome-theme when selected.

chrome/browser/ui/gtk/avatar_menu_item_gtk.h

 // Copyright (c) 2011 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_AVATAR_MENU_ITEM_GTK_H_
 #define CHROME_BROWSER_UI_GTK_AVATAR_MENU_ITEM_GTK_H_
 #pragma once
 
 #include <gtk/gtk.h>
 
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/profiles/avatar_menu_model.h"
+#include "content/public/browser/notification_observer.h"
+#include "content/public/browser/notification_registrar.h"
 #include "ui/base/gtk/gtk_signal.h"
 #include "ui/base/gtk/owned_widget_gtk.h"
 
 class GtkThemeService;
 
 // This widget contains the profile icon, user name, and synchronization status
 // to be displayed in the AvatarMenuBubble. Clicking the profile will open a new
 // browser window, and when the user hovers over an active profile item, a link
 // is displayed that will allow editing the profile.
-class AvatarMenuItemGtk {
+class AvatarMenuItemGtk : public content::NotificationObserver {
  public:
   // Delegates opening or editing a profile.
   class Delegate {
    public:
     // Open a new browser window using the profile at |profile_index|.
     virtual void OpenProfile(size_t profile_index) = 0;
 
     // Edit the profile given by |profile_index|.
     virtual void EditProfile(size_t profile_index) = 0;
   };
 
   AvatarMenuItemGtk(Delegate* delegate,
                     const AvatarMenuModel::Item& item,
                     size_t item_index,
                     GtkThemeService* theme_service);
   virtual ~AvatarMenuItemGtk();
 
   void OpenProfile();
   void EditProfile();
 
   // Returns the root widget for this menu item.
   GtkWidget* widget() { return widget_.get(); }
 
+  // content::NotificationObserver implementation.
+  virtual void Observe(int type,
+                       const content::NotificationSource& source,
+                       const content::NotificationDetails& details) OVERRIDE;
+
  private:
   CHROMEGTK_CALLBACK_1(AvatarMenuItemGtk, gboolean, OnProfileClick,
                        GdkEventButton*);
   CHROMEGTK_CALLBACK_1(AvatarMenuItemGtk, gboolean, OnProfileEnter,
                        GdkEventCrossing*);
   CHROMEGTK_CALLBACK_1(AvatarMenuItemGtk, gboolean, OnProfileLeave,
                        GdkEventCrossing*);
   CHROMEGTK_CALLBACK_0(AvatarMenuItemGtk, void, OnEditProfileLinkClicked);
 
   // Create all widgets in this menu item, using |theme_service|.
   void Init(GtkThemeService* theme_service);
 
   // A weak pointer to the item's delegate.
   Delegate* delegate_;
 
   // Profile information to display for this item, e.g. user name, sync status.
   AvatarMenuModel::Item item_;
 
   // The index of this profile. The delegate uses this value to distinguish
   // which profile should be switched to.
   size_t item_index_;
 
   // The root widget for this menu item.
   ui::OwnedWidgetGtk widget_;
 
+  // Provides colors.
+  GtkThemeService* theme_service_;
+
   // A weak pointer to a label that displays the sync status. It is not shown
   // when the user is hovering over the item if the profile is the active
   // profile.
   GtkWidget* status_label_;
 
   // A weak pointer to a link button to edit the given profile. It is shown only
   // when the user is hovering over the active profile.
   GtkWidget* link_alignment_;
 
+  // A weak pointer to a GtkChromeLinkButton so we can keep the use_gtk_theme
+  // property up to date.
+  GtkWidget* edit_profile_link_;
+
+  // The highlighted color. Depending on the theme, this is either |widget|'s
+  // bg[GTK_STATE_SELECTED] or a static highlight.
+  GdkColor highlighted_color_;
+
+  // The unhighlighted color. Depending on the theme, this is either NULL or a
+  // pointer to static data.
+  const GdkColor* unhighlighted_color_;
+
   base::WeakPtrFactory<AvatarMenuItemGtk> weak_factory_;
+
+  content::NotificationRegistrar registrar_;
+
+  DISALLOW_COPY_AND_ASSIGN(AvatarMenuItemGtk);
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_AVATAR_MENU_ITEM_GTK_H_