GTK Themes: Tint throbbers like we tint all other buttons in the interface.

chrome/browser/gtk/tabs/tab_gtk.h

 // Copyright (c) 2009 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_GTK_TABS_TAB_GTK_H_
 #define CHROME_BROWSER_GTK_TABS_TAB_GTK_H_
 
+#include "app/theme_provider.h"
 #include "base/basictypes.h"
 #include "base/message_loop.h"
 #include "chrome/browser/gtk/tabs/tab_renderer_gtk.h"
 #include "chrome/browser/tabs/tab_strip_model.h"
 
 namespace gfx {
 class Path;
 }
 
+class ThemeProvider;
+
 class TabGtk : public TabRendererGtk,
                public MessageLoopForUI::Observer {
  public:
   // An interface implemented by an object that can help this Tab complete
   // various actions. The index parameter is the index of this Tab in the
   // TabRenderer::Model.
   class TabDelegate {
    public:
     // Returns true if the specified Tab is selected.
     virtual bool IsTabSelected(const TabGtk* tab) const = 0;
@@ skipping 30 matching lines @@
     // Ends dragging a Tab. |canceled| is true if the drag was aborted in a way
     // other than the user releasing the mouse. Returns whether the tab has been
     // destroyed.
     virtual bool EndDrag(bool canceled) = 0;
 
     // Returns true if the associated TabStrip's delegate supports tab moving or
     // detaching. Used by the Frame to determine if dragging on the Tab
     // itself should move the window in cases where there's only one
     // non drag-able Tab.
     virtual bool HasAvailableDragActions() const = 0;
+
+    // Returns the theme provider for icons and colors.
+    virtual ThemeProvider* GetThemeProvider() = 0;
   };
 
-  explicit TabGtk(TabDelegate* delegate);
+  TabGtk(TabDelegate* delegate);
   virtual ~TabGtk();
 
   // Access the delegate.
   TabDelegate* delegate() const { return delegate_; }
 
   GtkWidget* widget() const { return event_box_; }
 
   // Used to set/check whether this Tab is being animated closed.
   void set_closing(bool closing) { closing_ = closing; }
   bool closing() const { return closing_; }
@@ skipping 66 matching lines @@
   // DCHECK.
   GtkWidget* event_box_;
 
   // True if this tab is being dragged.
   bool dragging_;
 
   DISALLOW_COPY_AND_ASSIGN(TabGtk);
 };
 
 #endif  // CHROME_BROWSER_GTK_TABS_TAB_GTK_H_