Add ability to set resolution on external display

ash/display/display_change_observer_x11_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 "ash/display/display_change_observer_x11.h"
-
-// Undefine X's macros used in gtest.
-#undef Bool
-#undef None
-
-#include "testing/gtest/include/gtest/gtest.h"
-
-typedef testing::Test DisplayChangeObserverX11Test;
-
-namespace ash {
-namespace internal {
-
-TEST_F(DisplayChangeObserverX11Test, TestBlackListedDisplay) {
-  EXPECT_TRUE(ShouldIgnoreSize(10, 10));
-  EXPECT_TRUE(ShouldIgnoreSize(40, 30));
-  EXPECT_TRUE(ShouldIgnoreSize(50, 40));
-  EXPECT_TRUE(ShouldIgnoreSize(160, 90));
-  EXPECT_TRUE(ShouldIgnoreSize(160, 100));
-
-  EXPECT_FALSE(ShouldIgnoreSize(50, 60));
-  EXPECT_FALSE(ShouldIgnoreSize(100, 70));
-  EXPECT_FALSE(ShouldIgnoreSize(272, 181));
-}
-
-}  // namespace internal
-}  // namespace ash