Remove InfoBarDelegate::web_contents()

chrome/browser/media/media_stream_infobar_delegate.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/media/media_stream_infobar_delegate.h"
 
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/google/google_util.h"
@@ skipping 119 matching lines @@
   controller_->Deny(true, content::MEDIA_DEVICE_PERMISSION_DENIED);
   return true;
 }
 
 base::string16 MediaStreamInfoBarDelegate::GetLinkText() const {
   return l10n_util::GetStringUTF16(IDS_LEARN_MORE);
 }
 
 bool MediaStreamInfoBarDelegate::LinkClicked(
     WindowOpenDisposition disposition) {
-  web_contents()->OpenURL(content::OpenURLParams(
+  content::WebContents* web_contents =
+      InfoBarService::WebContentsFromInfoBar(infobar());
+  web_contents->OpenURL(content::OpenURLParams(
       google_util::AppendGoogleLocaleParam(
           GURL(chrome::kMediaAccessLearnMoreUrl)),
       content::Referrer(),
       (disposition == CURRENT_TAB) ? NEW_FOREGROUND_TAB : disposition,
       content::PAGE_TRANSITION_LINK,
       false));
 
   return false;  // Do not dismiss the info bar.
 }