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

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

 // 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.
 
 #include "chrome/browser/ui/views/toolbar/toolbar_action_view.h"
 
 #include <string>
 
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 175 matching lines @@
   // TODO(erikkay): Run a nested modal loop while the mouse is down to
   // enable menu-like drag-select behavior.
 
   // The return value of this method is returned via OnMousePressed.
   // We need to return false here since we're handing off focus to another
   // widget/view, and true will grab it right back and try to send events
   // to us.
   return false;
 }
 
+void ToolbarActionView::OnMouseEntered(const ui::MouseEvent& event) {
+  delegate_->OnMouseEnteredToolbarActionView();
+  views::MenuButton::OnMouseEntered(event);
+}
+
 bool ToolbarActionView::OnMousePressed(const ui::MouseEvent& event) {
   if (!event.IsRightMouseButton()) {
     return view_controller_->HasPopup(GetCurrentWebContents()) ?
         MenuButton::OnMousePressed(event) : LabelButton::OnMousePressed(event);
   }
   return false;
 }
 
 void ToolbarActionView::OnMouseReleased(const ui::MouseEvent& event) {
   if (view_controller_->HasPopup(GetCurrentWebContents()) || IsMenuRunning()) {
@@ skipping 180 matching lines @@
   if (!view_controller_->IsEnabled(GetCurrentWebContents())) {
     // We should only get a button pressed event with a non-enabled action if
     // the left-click behavior should open the menu.
     DCHECK(view_controller_->DisabledClickOpensMenu());
     context_menu_controller()->ShowContextMenuForView(
         this, menu_point, source_type);
   } else {
     view_controller_->ExecuteAction(true);
   }
 }