[Mac] Hide Zoom Decoration for Default Zoom

chrome/browser/ui/cocoa/location_bar/zoom_decoration.h

 // Copyright (c) 2012 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_COCOA_LOCATION_BAR_ZOOM_DECORATION_H_
 #define CHROME_BROWSER_UI_COCOA_LOCATION_BAR_ZOOM_DECORATION_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/macros.h"
@@ skipping 28 matching lines @@
   void ShowBubble(BOOL auto_close);
 
   // Closes the zoom bubble.
   void CloseBubble();
 
  protected:
   // Hides all UI associated with the zoom decoration.
   // Virtual and protected for testing.
   virtual void HideUI();
 
-  // Show and update UI associated with the zoom decoration.
+  // Update UI associated with the zoom decoration.
   // Virtual and protected for testing.
-  virtual void ShowAndUpdateUI(zoom::ZoomController* zoom_controller,
-                               NSString* tooltip_string,
-                               bool location_bar_is_dark);
+  virtual void UpdateUI(zoom::ZoomController* zoom_controller,
+                        NSString* tooltip_string,
+                        bool location_bar_is_dark);
 
   // Overridden from LocationBarDecoration:
   gfx::VectorIconId GetMaterialVectorIconId() const override;
 
  private:
   friend ZoomDecorationTest;
 
   bool IsAtDefaultZoom() const;
 
   // Virtual for testing.
@@ skipping 17 matching lines @@
 
   // The string to show for a tooltip.
   base::scoped_nsobject<NSString> tooltip_;
 
   gfx::VectorIconId vector_icon_id_;
 
   DISALLOW_COPY_AND_ASSIGN(ZoomDecoration);
 };
 
 #endif  // CHROME_BROWSER_UI_COCOA_LOCATION_BAR_ZOOM_DECORATION_H_