LabelButton: cache the last computed preferred size

chrome/browser/ui/views/profiles/new_avatar_button.cc

 // 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.
 
 #include "chrome/browser/ui/views/profiles/new_avatar_button.h"
 
 #include "base/win/windows_version.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/profiles/profiles_state.h"
@@ skipping 132 matching lines @@
         IDR_ICON_PROFILES_AVATAR_BUTTON_ERROR).ToImageSkia();
   }
 
   SetImage(views::Button::STATE_NORMAL, icon);
   UpdateAvatarButtonAndRelayoutParent();
 }
 
 void NewAvatarButton::UpdateAvatarButtonAndRelayoutParent() {
   // We want the button to resize if the new text is shorter.
   SetText(profiles::GetAvatarButtonTextForProfile(browser_->profile()));
-  set_min_size(gfx::Size());
+  SetMinSize(gfx::Size());
   InvalidateLayout();
 
   // Because the width of the button might have changed, the parent browser
   // frame needs to recalculate the button bounds and redraw it.
   if (parent())
     parent()->Layout();
 }