GTK: Use IDR_THEME_WINDOW_CONTROL_BACKGROUND when drawing min/max/close and new tab buttons.

chrome/browser/ui/gtk/tabs/tab_strip_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_TABS_TAB_STRIP_GTK_H_
 #define CHROME_BROWSER_UI_GTK_TABS_TAB_STRIP_GTK_H_
 #pragma once
 
 #include <gtk/gtk.h>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop.h"
 #include "base/task.h"
 #include "chrome/browser/tabs/tab_strip_model.h"
 #include "chrome/browser/ui/gtk/tabs/tab_gtk.h"
 #include "chrome/browser/ui/gtk/tabstrip_origin_provider.h"
 #include "chrome/browser/ui/gtk/view_id_util.h"
 #include "chrome/browser/ui/tabs/hover_tab_selector.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"
 #include "ui/gfx/rect.h"
 
 class BrowserWindowGtk;
 class CustomDrawButton;
 class DraggedTabControllerGtk;
 class GtkThemeService;
 
 class TabStripGtk : public TabStripModelObserver,
                     public TabGtk::TabDelegate,
                     public MessageLoopForUI::Observer,
+                    public content::NotificationObserver,
                     public TabstripOriginProvider,
                     public ViewIDUtil::Delegate {
  public:
   class TabAnimation;
 
   TabStripGtk(TabStripModel* model, BrowserWindowGtk* window);
   virtual ~TabStripGtk();
 
   // Initialize and load the TabStrip into a container.
   // TODO(tc): Pass in theme provider so we can properly theme the tabs.
@@ skipping 101 matching lines @@
       TabStripModel::ContextMenuCommand command_id, TabGtk* tab);
   virtual void StopAllHighlighting();
   virtual void MaybeStartDrag(TabGtk* tab, const gfx::Point& point);
   virtual void ContinueDrag(GdkDragContext* context);
   virtual bool EndDrag(bool canceled);
   virtual bool HasAvailableDragActions() const;
   virtual GtkThemeService* GetThemeProvider();
   virtual TabStripMenuController* GetTabStripMenuControllerForTab(TabGtk* tab);
 
   // MessageLoop::Observer implementation:
-  virtual void WillProcessEvent(GdkEvent* event);
-  virtual void DidProcessEvent(GdkEvent* event);
+  virtual void WillProcessEvent(GdkEvent* event) OVERRIDE;
+  virtual void DidProcessEvent(GdkEvent* event) OVERRIDE;
+
+  // Overridden from content::NotificationObserver:
+  virtual void Observe(int type,
+                       const content::NotificationSource& source,
+                       const content::NotificationDetails& details) OVERRIDE;
 
   // Horizontal gap between mini-tabs and normal tabs.
   static const int mini_to_non_mini_gap_;
 
  private:
   friend class BrowserWindowGtk;
   friend class DraggedTabControllerGtk;
   friend class InsertTabAnimation;
   friend class MiniMoveAnimation;
   friend class MiniTabAnimation;
@@ skipping 104 matching lines @@
                             int num_rects,
                             std::vector<int>* tabs_to_paint);
 
   // Paints the tab favicon areas for tabs in |tabs_to_paint|.
   void PaintOnlyFavicons(GdkEventExpose* event,
                          const std::vector<int>& tabs_to_paint);
 
   // Initializes the new tab button.
   CustomDrawButton* MakeNewTabButton();
 
+  // Sets the theme specific background on the new tab button.
+  void SetNewTabButtonBackground();
+
   // Gets the number of Tabs in the collection.
   int GetTabCount() const;
 
   // Returns the number of mini-tabs.
   int GetMiniTabCount() const;
 
   // Retrieves the Tab at the specified index. Take care in using this, you may
   // need to use GetTabAtAdjustForAnimation.
   TabGtk* GetTabAt(int index) const;
 
@@ skipping 181 matching lines @@
   // A factory that is used to construct a delayed callback to the
   // ResizeLayoutTabsNow method.
   base::WeakPtrFactory<TabStripGtk> weak_factory_;
 
   // True if the tabstrip has already been added as a MessageLoop observer.
   bool added_as_message_loop_observer_;
 
   // Helper for performing tab selection as a result of dragging over a tab.
   HoverTabSelector hover_tab_selector_;
 
+  content::NotificationRegistrar registrar_;
+
   DISALLOW_COPY_AND_ASSIGN(TabStripGtk);
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_TABS_TAB_STRIP_GTK_H_