Fix the "Minimize" button of app windows remaining hovered after restore.

apps/ui/views/app_window_frame_view.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 "apps/ui/views/app_window_frame_view.h"
 
 #include "apps/ui/native_app_window.h"
 #include "base/strings/utf_string_conversions.h"
 #include "extensions/common/draggable_region.h"
 #include "grit/theme_resources.h"
@@ skipping 263 matching lines @@
 
   bool maximized = frame_->IsMaximized();
   maximize_button_->SetVisible(!maximized);
   restore_button_->SetVisible(maximized);
   if (maximized)
     maximize_button_->SetState(views::CustomButton::STATE_NORMAL);
   else
     restore_button_->SetState(views::CustomButton::STATE_NORMAL);
 
   gfx::Size minimize_size = minimize_button_->GetPreferredSize();
+  minimize_button_->SetState(views::CustomButton::STATE_NORMAL);
   minimize_button_->SetBounds(
       maximize_button_->x() - kButtonSpacing - minimize_size.width(),
       kButtonOffsetY,
       minimize_size.width(),
       minimize_size.height());
 }
 
 void AppWindowFrameView::OnPaint(gfx::Canvas* canvas) {
   if (window_->IsFrameless())
     return;
@@ skipping 64 matching lines @@
     frame_->Close();
   else if (sender == maximize_button_)
     frame_->Maximize();
   else if (sender == restore_button_)
     frame_->Restore();
   else if (sender == minimize_button_)
     frame_->Minimize();
 }
 
 }  // namespace apps