Fixes for -Wunused-function on Linux, Android and ChromeOS

chrome/browser/chromeos/login/login_utils_browsertest.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/chromeos/login/login_utils.h"
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/scoped_temp_dir.h"
@@ skipping 96 matching lines @@
     "}";
 
 const char kDMServer[] = "http://server/device_management";
 const char kDMRegisterRequest[] =
     "http://server/device_management?request=register";
 const char kDMPolicyRequest[] =
     "http://server/device_management?request=policy";
 
 const char kDMToken[] = "1234";
 
-// Used to mark |flag|, indicating that RefreshPolicies() has executed its
-// callback.
-void SetFlag(bool* flag) {
-  *flag = true;
-}
-
 // Single task of the fake IO loop used in the test, that just waits until
 // it is signaled to quit or perform some work.
 // |completion| is the event to wait for, and |work| is the task to invoke
 // when signaled. If the task returns false then this quits the IO loop.
 void BlockLoop(base::WaitableEvent* completion, base::Callback<bool()> work) {
   do {
     completion->Wait();
   } while (work.Run());
   base::MessageLoop::current()->QuitNow();
 }
@@ skipping 537 matching lines @@
 }
 
 INSTANTIATE_TEST_CASE_P(
     LoginUtilsBlockingLoginTestInstance,
     LoginUtilsBlockingLoginTest,
     testing::Values(0, 1, 2, 3, 4, 5));
 
 }  // namespace
 
 }  // namespace chromeos