Dynamic updating recent menu for tabs from other devices.

chrome/browser/sync/profile_sync_test_util.cc

 // Copyright (c) 2011 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/sync/profile_sync_test_util.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/location.h"
@@ skipping 54 matching lines @@
       ->SetAuthenticatedAccountInfo("12345", "foo");
   return profile;
 }
 
 std::unique_ptr<KeyedService> BuildMockProfileSyncService(
     content::BrowserContext* context) {
   return base::MakeUnique<browser_sync::ProfileSyncServiceMock>(
       CreateProfileSyncServiceParamsForTest(
           Profile::FromBrowserContext(context)));
 }
+
+std::unique_ptr<KeyedService> BuildNiceMockProfileSyncService(
+    content::BrowserContext* context) {
+  ProfileSyncService::InitParams init_params =

[Peter Kasting, 2017/03/28 21:38:39]

Nit: I might inline this below just to keep it in parallel with the code above
more, so it's clear they do almost the same thing

[sath, 2017/03/29 06:26:15]

I can't because of
---
error: taking the address of a temporary object of type
'ProfileSyncService::InitParams' [-Waddress-of-temporary]
---

+      CreateProfileSyncServiceParamsForTest(
+          Profile::FromBrowserContext(context));
+
+  return base::MakeUnique<
+      testing::NiceMock<browser_sync::ProfileSyncServiceMock>>(&init_params);
+}