linux and chromeos: Turn on -Wunused-const-variable.

chrome/browser/ui/ash/multi_user_window_manager_unittest.cc

 // Copyright 2013 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/ui/ash/multi_user_window_manager.h"
 
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/test/test_shell_delegate.h"
 #include "ash/wm/window_state.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/test/base/testing_profile.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/root_window.h"
 #include "ui/base/ui_base_types.h"
 
 namespace ash {
 namespace test {
 
-// This many test windows will get created.
-const int kNumberOfTestWindows = 5;
-
 // A test class for preparing the chrome::MultiUserWindowManager. It creates
 // various windows and instantiates the chrome::MultiUserWindowManager.
 class MultiUserWindowManagerTest : public AshTestBase {
  public:
   MultiUserWindowManagerTest() : multi_user_window_manager_(NULL) {}
 
   virtual void SetUp() OVERRIDE;
   virtual void TearDown() OVERRIDE;
 
  protected:
@@ skipping 320 matching lines @@
   wm::GetWindowState(window(0))->Minimize();
   EXPECT_EQ("H[A]", GetStatus());
 
   // Try to transfer the window to user B - which should get ignored.
   multi_user_window_manager()->ShowWindowForUser(window(0), "B");
   EXPECT_EQ("H[A]", GetStatus());
 }
 
 }  // namespace test
 }  // namespace ash