Track frame openers in FrameTreeNodes instead of WebContents

content/browser/browser_plugin/browser_plugin_guest.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 "content/browser/browser_plugin/browser_plugin_guest.h"
 
 #include <algorithm>
 
 #include "base/message_loop/message_loop.h"
 #include "base/pickle.h"
@@ skipping 302 matching lines @@
 }
 
 BrowserPluginGuest::~BrowserPluginGuest() {
 }
 
 // static
 BrowserPluginGuest* BrowserPluginGuest::Create(
     WebContentsImpl* web_contents,
     BrowserPluginGuestDelegate* delegate) {
   return new BrowserPluginGuest(
-      web_contents->opener() != nullptr, web_contents, delegate);
+      web_contents->HasOpener(), web_contents, delegate);
 }
 
 // static
 bool BrowserPluginGuest::IsGuest(WebContentsImpl* web_contents) {
   return web_contents && web_contents->GetBrowserPluginGuest();
 }
 
 // static
 bool BrowserPluginGuest::IsGuest(RenderViewHostImpl* render_view_host) {
   return render_view_host && IsGuest(
@@ skipping 591 matching lines @@
 void BrowserPluginGuest::OnImeCompositionRangeChanged(
       const gfx::Range& range,
       const std::vector<gfx::Rect>& character_bounds) {
   static_cast<RenderWidgetHostViewBase*>(
       web_contents()->GetRenderWidgetHostView())->ImeCompositionRangeChanged(
           range, character_bounds);
 }
 #endif
 
 }  // namespace content