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

chrome/browser/ui/toolbar/toolbar_actions_bar.h

 // Copyright 2014 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_TOOLBAR_TOOLBAR_ACTIONS_BAR_H_
 #define CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_ACTIONS_BAR_H_
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/scoped_vector.h"
@@ skipping 49 matching lines @@
   // The type of drag that occurred in a drag-and-drop operation.
   enum DragType {
     // The icon was dragged to the same container it started in.
     DRAG_TO_SAME,
     // The icon was dragged from the main container to the overflow.
     DRAG_TO_OVERFLOW,
     // The icon was dragged from the overflow container to the main.
     DRAG_TO_MAIN,
   };
 
+  enum HighlightType {
+    HIGHLIGHT_NONE,
+    HIGHLIGHT_INFO,
+    HIGHLIGHT_WARNING,
+  };
+
   ToolbarActionsBar(ToolbarActionsBarDelegate* delegate,
                     Browser* browser,
                     ToolbarActionsBar* main_bar);
   ~ToolbarActionsBar() override;
 
   // Returns the width of a browser action icon, optionally including the
   // following padding.
   static int IconWidth(bool include_padding);
 
   // Returns the height of a browser action icon.
@@ skipping 16 matching lines @@
   // Returns the number of icons that can fit within the given width.
   size_t WidthToIconCount(int width) const;
 
   // Returns the number of icons that should be displayed.
   size_t GetIconCount() const;
 
   // Returns the actions in the proper order; this may differ from the
   // underlying order in the case of actions being popped out to show a popup.
   std::vector<ToolbarActionViewController*> GetActions() const;
 
+  // Returns the current highlight type.
+  HighlightType GetHighlightType() const;
+
   // Creates the toolbar actions.
   void CreateActions();
 
   // Deletes all toolbar actions.
   void DeleteActions();
 
   // Updates all the toolbar actions.
   void Update();
 
   // Sets the width for the overflow menu rows.
@@ skipping 173 matching lines @@
   // The controller of the bubble to show once animation finishes, if any.
   scoped_ptr<extensions::ExtensionMessageBubbleController>
       pending_extension_bubble_controller_;
 
   base::WeakPtrFactory<ToolbarActionsBar> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ToolbarActionsBar);
 };
 
 #endif  // CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_ACTIONS_BAR_H_