[Extensions UI] Highlight toolbar extensions when the redesign bubble is active

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

 // Copyright 2013 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_VIEWS_TOOLBAR_TOOLBAR_ACTION_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_TOOLBAR_TOOLBAR_ACTION_VIEW_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"
@@ skipping 38 matching lines @@
     // Whether the container for this button is shown inside a menu.
     virtual bool ShownInsideMenu() const = 0;
 
     // Notifies that a drag completed.
     virtual void OnToolbarActionViewDragDone() = 0;
 
     // Returns the view of the toolbar actions overflow menu to use as a
     // reference point for a popup when this view isn't visible.
     virtual views::MenuButton* GetOverflowReferenceView() = 0;
 
+    // Notifies the delegate that the mouse entered the view.
+    virtual void OnMouseEnteredToolbarActionView() = 0;
+
    protected:
     ~Delegate() override {}
   };
 
   ToolbarActionView(ToolbarActionViewController* view_controller,
                     Profile* profile,
                     Delegate* delegate);
   ~ToolbarActionView() override;
 
   // views::MenuButton:
@@ skipping 10 matching lines @@
   // MenuButton behavior overrides.  These methods all default to LabelButton
   // behavior unless this button is a popup.  In that case, it uses MenuButton
   // behavior.  MenuButton has the notion of a child popup being shown where the
   // button will stay in the pushed state until the "menu" (a popup in this
   // case) is dismissed.
   // TODO(devlin): This is a good idea, but it has some funny UI side-effects,
   // like the fact that label buttons enter a pressed state immediately, but
   // menu buttons only enter a pressed state on release (if they're draggable).
   // We should probably just pick a behavior, and stick to it.
   bool Activate() override;
+  void OnMouseEntered(const ui::MouseEvent& event) override;
   bool OnMousePressed(const ui::MouseEvent& event) override;
   void OnMouseReleased(const ui::MouseEvent& event) override;
   void OnMouseExited(const ui::MouseEvent& event) override;
   bool OnKeyReleased(const ui::KeyEvent& event) override;
   void OnGestureEvent(ui::GestureEvent* event) override;
   scoped_ptr<views::LabelButtonBorder> CreateDefaultBorder() const override;
   bool ShouldEnterPushedState(const ui::Event& event) override;
 
   // ToolbarActionViewDelegate: (public because called by others).
   void UpdateState() override;
@@ skipping 70 matching lines @@
   base::Closure followup_context_menu_task_;
 
   content::NotificationRegistrar registrar_;
 
   base::WeakPtrFactory<ToolbarActionView> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ToolbarActionView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_TOOLBAR_TOOLBAR_ACTION_VIEW_H_