[Refactor] Cache the views::Widget* that the FrameMaximizeButton acts on

chrome/browser/ui/views/frame/browser_non_client_frame_view_ash.cc

 // 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.
 
 #include "chrome/browser/ui/views/frame/browser_non_client_frame_view_ash.h"
 
 #include "ash/ash_switches.h"
 #include "ash/wm/caption_buttons/frame_caption_button_container_view.h"
 #include "ash/wm/frame_painter.h"
 #include "chrome/browser/themes/theme_properties.h"
@@ skipping 72 matching lines @@
     : BrowserNonClientFrameView(frame, browser_view),
       caption_button_container_(NULL),
       window_icon_(NULL),
       frame_painter_(new ash::FramePainter) {
 }
 
 BrowserNonClientFrameViewAsh::~BrowserNonClientFrameViewAsh() {
 }
 
 void BrowserNonClientFrameViewAsh::Init() {
-  caption_button_container_ = new ash::FrameCaptionButtonContainerView(this,
-      frame(), ash::FrameCaptionButtonContainerView::MINIMIZE_ALLOWED);
+  caption_button_container_ = new ash::FrameCaptionButtonContainerView(frame(),
+      ash::FrameCaptionButtonContainerView::MINIMIZE_ALLOWED);
   AddChildView(caption_button_container_);
 
   // Initializing the TabIconView is expensive, so only do it if we need to.
   if (browser_view()->ShouldShowWindowIcon()) {
     window_icon_ = new TabIconView(this);
     window_icon_->set_is_light(true);
     AddChildView(window_icon_);
     window_icon_->Update();
   }
 
@@ skipping 447 matching lines @@
 int BrowserNonClientFrameViewAsh::GetThemeFrameOverlayImageId() const {
   ui::ThemeProvider* tp = GetThemeProvider();
   if (tp->HasCustomImage(IDR_THEME_FRAME_OVERLAY) &&
       browser_view()->IsBrowserTypeNormal() &&
       !browser_view()->IsOffTheRecord()) {
     return ShouldPaintAsActive() ?
         IDR_THEME_FRAME_OVERLAY : IDR_THEME_FRAME_OVERLAY_INACTIVE;
   }
   return 0;
 }