Remove use of deprecated MessageLoop methods in extensions.

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 <utility>
 
+#include "base/location.h"
 #include "base/memory/ptr_util.h"
+#include "base/single_thread_task_runner.h"
+#include "base/threading/thread_task_runner_handle.h"
 #include "components/guest_view/browser/guest_view_event.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"
 #include "extensions/browser/guest_view/web_view/web_view_constants.h"
 #include "extensions/browser/guest_view/web_view/web_view_guest.h"
 #include "extensions/browser/guest_view/web_view/web_view_permission_helper_delegate.h"
 #include "extensions/browser/guest_view/web_view/web_view_permission_types.h"
 
@@ skipping 290 matching lines @@
     const base::DictionaryValue& request_info,
     const PermissionResponseCallback& callback,
     bool allowed_by_default) {
   // If there are too many pending permission requests then reject this request.
   if (pending_permission_requests_.size() >=
       webview::kMaxOutstandingPermissionRequests) {
     // Let the stack unwind before we deny the permission request so that
     // objects held by the permission request are not destroyed immediately
     // after creation. This is to allow those same objects to be accessed again
     // in the same scope without fear of use after freeing.
-    base::MessageLoop::current()->PostTask(
+    base::ThreadTaskRunnerHandle::Get()->PostTask(
         FROM_HERE,
         base::Bind(&PermissionResponseCallback::Run,
                    base::Owned(new PermissionResponseCallback(callback)),
-                   allowed_by_default,
-                   std::string()));
+                   allowed_by_default, std::string()));
     return webview::kInvalidPermissionRequestID;
   }
 
   int request_id = next_permission_request_id_++;
   pending_permission_requests_[request_id] =
       PermissionResponseInfo(callback, permission_type, allowed_by_default);
   std::unique_ptr<base::DictionaryValue> args(new base::DictionaryValue());
   args->Set(webview::kRequestInfo, request_info.DeepCopy());
   args->SetInteger(webview::kRequestId, request_id);
   switch (permission_type) {
@@ skipping 68 matching lines @@
       allowed_by_default(allowed_by_default) {
 }
 
 WebViewPermissionHelper::PermissionResponseInfo::PermissionResponseInfo(
     const PermissionResponseInfo& other) = default;
 
 WebViewPermissionHelper::PermissionResponseInfo::~PermissionResponseInfo() {
 }
 
 }  // namespace extensions