Move DisplayUtils methods into gfx::Screen.

chrome/browser/metrics/display_utils_unittest.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 "base/message_loop.h"
-#include "chrome/browser/metrics/display_utils.h"
-#include "content/browser/browser_thread.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-// Crashes on Linux Aura, probably because we need to initialize a Screen
-// object. See http://crbug.com/100341
-#if defined(USE_AURA) && !defined(OS_WIN)
-#define MAYBE_GetPrimaryDisplayDimensions DISABLED_GetPrimaryDisplayDimensions
-#else
-#define MAYBE_GetPrimaryDisplayDimensions GetPrimaryDisplayDimensions
-#endif
-TEST(DisplayUtilsTest, MAYBE_GetPrimaryDisplayDimensions) {
-  MessageLoop message_loop;
-  BrowserThread ui_thread(BrowserThread::UI, &message_loop);
-  int width = 0, height = 0;
-  // We aren't actually testing that it's correct, just that it's sane.
-  DisplayUtils::GetPrimaryDisplayDimensions(&width, &height);
-  EXPECT_GE(width, 10);
-  EXPECT_GE(height, 10);
-}
-
-TEST(DisplayUtilsTest, GetDisplayCount) {
-  MessageLoop message_loop;
-  BrowserThread ui_thread(BrowserThread::UI, &message_loop);
-  // We aren't actually testing that it's correct, just that it's sane.
-  EXPECT_GE(DisplayUtils::GetDisplayCount(), 1);
-}