Make WebContentsObserver::web_contents() public

extensions/browser/guest_view/web_view/web_view_permission_helper.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 "extensions/browser/guest_view/web_view/web_view_permission_helper.h"
 
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/user_metrics.h"
 #include "extensions/browser/api/extensions_api_client.h"
@@ skipping 112 matching lines @@
         break;
       default:
         break;
     }
   }
 }
 
 } // namespace
 
 WebViewPermissionHelper::WebViewPermissionHelper(WebViewGuest* web_view_guest)
-  : content::WebContentsObserver(web_view_guest->guest_web_contents()),
-    next_permission_request_id_(guestview::kInstanceIDNone),
-    web_view_guest_(web_view_guest),
-    weak_factory_(this) {
+    : content::WebContentsObserver(web_view_guest->web_contents()),
+      next_permission_request_id_(guestview::kInstanceIDNone),
+      web_view_guest_(web_view_guest),
+      weak_factory_(this) {
       web_view_permission_helper_delegate_.reset(
           ExtensionsAPIClient::Get()->CreateWebViewPermissionHelperDelegate(
               this));
 }
 
 WebViewPermissionHelper::~WebViewPermissionHelper() {
 }
 
 // static
 WebViewPermissionHelper* WebViewPermissionHelper::FromFrameID(
@@ skipping 191 matching lines @@
     bool allowed_by_default)
     : callback(callback),
       permission_type(permission_type),
       allowed_by_default(allowed_by_default) {
 }
 
 WebViewPermissionHelper::PermissionResponseInfo::~PermissionResponseInfo() {
 }
 
 }  // namespace extensions