MacViews: Implement event monitoring for a specific window

chrome/browser/ui/views/location_bar/zoom_bubble_view.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/location_bar/zoom_bubble_view.h"
 
 #include "base/i18n/rtl.h"
 #include "base/strings/stringprintf.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/chrome_page_zoom.h"
@@ skipping 75 matching lines @@
   // If the zoom change was initiated by an extension, capture the relevent
   // information from it.
   if (client) {
     zoom_bubble_->SetExtensionInfo(
         static_cast<const extensions::ExtensionZoomRequestClient*>(client)
             ->extension());
   }
 
   // If we do not have an anchor view, parent the bubble to the content area.
   if (!anchor_to_view)
-    zoom_bubble_->set_parent_window(web_contents->GetTopLevelNativeWindow());
+    zoom_bubble_->set_parent_window(web_contents->GetNativeView());
 
   views::BubbleDelegateView::CreateBubble(zoom_bubble_);
 
   // Adjust for fullscreen after creation as it relies on the content size.
   if (is_fullscreen)
     zoom_bubble_->AdjustForFullscreen(browser_view->GetBoundsInScreen());
 
   if (auto_close)
     zoom_bubble_->GetWidget()->ShowInactive();
   else
@@ skipping 253 matching lines @@
 void ZoomBubbleView::WindowClosing() {
   // |zoom_bubble_| can be a new bubble by this point (as Close(); doesn't
   // call this right away). Only set to NULL when it's this bubble.
   if (zoom_bubble_ == this)
     zoom_bubble_ = NULL;
 }
 
 ZoomBubbleView::ZoomBubbleExtensionInfo::ZoomBubbleExtensionInfo() {}
 
 ZoomBubbleView::ZoomBubbleExtensionInfo::~ZoomBubbleExtensionInfo() {}