Move DisplayManager and DisplayChangeObserverX11 from aura to ash.

ash/test/multi_display_manager_test_api.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 "ash/test/multi_display_manager_test_api.h"
-
-#include <vector>
-
-#include "ash/display/multi_display_manager.h"
-#include "ash/shell.h"
-#include "base/string_split.h"
-#include "ui/aura/root_window.h"
-#include "ui/gfx/display.h"
-
-namespace ash {
-namespace test {
-namespace {
-
-std::vector<gfx::Display> CreateDisplaysFromString(
-    const std::string specs) {
-  std::vector<gfx::Display> displays;
-  std::vector<std::string> parts;
-  base::SplitString(specs, ',', &parts);
-  for (std::vector<std::string>::const_iterator iter = parts.begin();
-       iter != parts.end(); ++iter) {
-    displays.push_back(aura::DisplayManager::CreateDisplayFromSpec(*iter));
-  }
-  return displays;
-}
-
-}  // namespace
-
-MultiDisplayManagerTestApi::MultiDisplayManagerTestApi(
-    internal::MultiDisplayManager* display_manager)
-        : display_manager_(display_manager) {
-}
-
-MultiDisplayManagerTestApi::~MultiDisplayManagerTestApi() {}
-
-void MultiDisplayManagerTestApi::UpdateDisplay(
-    const std::string& display_specs) {
-  std::vector<gfx::Display> displays = CreateDisplaysFromString(display_specs);
-  display_manager_->SetDisplayIdsForTest(&displays);
-  display_manager_->OnNativeDisplaysChanged(displays);
-
-  bool is_host_origin_set = false;
-  for (size_t i = 0; i < displays.size(); ++i) {
-    if (displays[i].bounds_in_pixel().origin() != gfx::Point(0, 0)) {
-      is_host_origin_set = true;
-      break;
-    }
-  }
-
-  // On non-testing environment, when a secondary display is connected, a new
-  // native (i.e. X) window for the display is always created below the
-  // previous one for GPU performance reasons. Try to emulate the behavior
-  // unless host origins are explicitly set.
-  if (!is_host_origin_set) {
-    Shell::RootWindowList root_windows = Shell::GetAllRootWindows();
-    int next_y = 0;
-    for (size_t i = 0; i < root_windows.size(); ++i) {
-      const gfx::Size size = root_windows[i]->GetHostSize();
-      root_windows[i]->SetHostBounds(gfx::Rect(gfx::Point(0, next_y), size));
-      next_y += size.height();
-    }
-  }
-}
-
-
-}  // namespace test
-}  // namespace ash