[Extensions UI] Remove all traces of the chevron

chrome/browser/ui/toolbar/toolbar_actions_bar_delegate.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_DELEGATE_H_
 #define CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_ACTIONS_BAR_DELEGATE_H_
 
 #include <stddef.h>
 
 #include <memory>
@@ skipping 27 matching lines @@
   virtual void RemoveViewForAction(ToolbarActionViewController* action) = 0;
 
   // Removes all action views.
   virtual void RemoveAllViews() = 0;
 
   // Redraws the view for the toolbar actions bar. |order_changed| indicates
   // whether or not the change caused a reordering of the actions.
   virtual void Redraw(bool order_changed) = 0;
 
   // Resizes the view to the |target_width| and animates with the given
-  // |tween_type|. |suppress_chevron| indicates if the chevron should not be
-  // shown during the animation.
+  // |tween_type|.
   virtual void ResizeAndAnimate(gfx::Tween::Type tween_type,
-                                int target_width,
-                                bool suppress_chevron) = 0;
-
-  // Sets the overflow chevron's visibility.
-  virtual void SetChevronVisibility(bool chevron_visible) = 0;
+                                int target_width) = 0;
 
   // Returns the width of the view according to |get_width_time|.
   virtual int GetWidth(GetWidthTime get_width_time) const = 0;
 
   // Returns true if the view is animating.
   virtual bool IsAnimating() const = 0;
 
   // Stops the current animation (width remains where it currently is).
   virtual void StopAnimating() = 0;
 
-  // Returns the width (including padding) for the overflow chevron.
-  virtual int GetChevronWidth() const = 0;
-
   // Shows the given |bubble|. Must not be called if another bubble is showing
   // or if the toolbar is animating.
   virtual void ShowToolbarActionBubble(
       std::unique_ptr<ToolbarActionsBarBubbleDelegate> bubble) = 0;
 };
 
 #endif  // CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_ACTIONS_BAR_DELEGATE_H_