Rejigger ThemeService: move exposure of ThemeProvider interface to a

chrome/browser/ui/views/toolbar/toolbar_action_view.h

Index: chrome/browser/ui/views/toolbar/toolbar_action_view.h
diff --git a/chrome/browser/ui/views/toolbar/toolbar_action_view.h b/chrome/browser/ui/views/toolbar/toolbar_action_view.h
index 7df2efe3d819d95b4dc4cd2831a9ac023594da46..9034110f806c4a0c6d18d993c1bea57f5e5fe208 100644
--- a/chrome/browser/ui/views/toolbar/toolbar_action_view.h
+++ b/chrome/browser/ui/views/toolbar/toolbar_action_view.h
@@ -7,8 +7,6 @@
 
 #include "base/callback.h"
 #include "chrome/browser/ui/views/toolbar/toolbar_action_view_delegate_views.h"
-#include "content/public/browser/notification_observer.h"
-#include "content/public/browser/notification_registrar.h"
 #include "ui/views/animation/ink_drop_host.h"
 #include "ui/views/context_menu_controller.h"
 #include "ui/views/controls/button/menu_button.h"
@@ -40,7 +38,6 @@ class ToolbarActionView : public views::MenuButton,
                           public ToolbarActionViewDelegateViews,
                           public views::MenuButtonListener,
                           public views::ContextMenuController,
-                          public content::NotificationObserver,
                           public views::InkDropHost {
  public:
   // Need DragController here because ToolbarActionView could be
@@ -89,11 +86,6 @@ class ToolbarActionView : public views::MenuButton,
   void OnMenuButtonClicked(views::View* sender,
                            const gfx::Point& point) override;
 
-  // content::NotificationObserver:
-  void Observe(int type,
-               const content::NotificationSource& source,
-               const content::NotificationDetails& details) override;
-
   // views::InkDropHost:
   void AddInkDropLayer(ui::Layer* ink_drop_layer) override;
   void RemoveInkDropLayer(ui::Layer* ink_drop_layer) override;
@@ -181,8 +173,6 @@ class ToolbarActionView : public views::MenuButton,
   // The time the popup was last closed.
   base::TimeTicks popup_closed_time_;
 
-  content::NotificationRegistrar registrar_;
-
   base::WeakPtrFactory<ToolbarActionView> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ToolbarActionView);