Refactors std::vector<Display> out of ScreenMus

mash/wm/test/wm_test_screen.cc

+// Copyright 2016 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 "mash/wm/test/wm_test_screen.h"
+
+#include "ui/aura/window.h"
+#include "ui/display/display_finder.h"
+
+#undef NOTIMPLEMENTED
+#define NOTIMPLEMENTED() DVLOG(1) << "notimplemented"

[Nico, 2016/05/27 13:38:07]

…what? If NOTIMPLEMENTED doesn't do what you want, why not add your own macro
instead of redefining a well-known macro?

+
+namespace mash {
+namespace wm {
+
+WmTestScreen::WmTestScreen() {
+  display::Screen::SetScreenInstance(this);
+}
+
+WmTestScreen::~WmTestScreen() {
+  if (display::Screen::GetScreen() == this)
+    display::Screen::SetScreenInstance(nullptr);
+}
+
+gfx::Point WmTestScreen::GetCursorScreenPoint() {
+  // TODO(sky): use the implementation from WindowManagerConnection.
+  NOTIMPLEMENTED();
+  return gfx::Point();
+}
+
+bool WmTestScreen::IsWindowUnderCursor(gfx::NativeWindow window) {
+  if (!window)
+    return false;
+
+  return window->IsVisible() &&
+         window->GetBoundsInScreen().Contains(GetCursorScreenPoint());
+}
+
+gfx::NativeWindow WmTestScreen::GetWindowAtScreenPoint(
+    const gfx::Point& point) {
+  NOTREACHED();
+  return nullptr;
+}
+
+display::Display WmTestScreen::GetPrimaryDisplay() const {
+  return *display_list_.GetPrimaryDisplayIterator();
+}
+
+display::Display WmTestScreen::GetDisplayNearestWindow(
+    gfx::NativeView view) const {
+  NOTIMPLEMENTED();
+  return *display_list_.GetPrimaryDisplayIterator();
+}
+
+display::Display WmTestScreen::GetDisplayNearestPoint(
+    const gfx::Point& point) const {
+  return *display::FindDisplayNearestPoint(display_list_.displays(), point);
+}
+
+int WmTestScreen::GetNumDisplays() const {
+  return static_cast<int>(display_list_.displays().size());
+}
+
+std::vector<display::Display> WmTestScreen::GetAllDisplays() const {
+  return display_list_.displays();
+}
+
+display::Display WmTestScreen::GetDisplayMatching(
+    const gfx::Rect& match_rect) const {
+  const display::Display* match = display::FindDisplayWithBiggestIntersection(
+      display_list_.displays(), match_rect);
+  return match ? *match : GetPrimaryDisplay();
+}
+
+void WmTestScreen::AddObserver(display::DisplayObserver* observer) {
+  display_list_.AddObserver(observer);
+}
+
+void WmTestScreen::RemoveObserver(display::DisplayObserver* observer) {
+  display_list_.RemoveObserver(observer);
+}
+
+}  // namespace wm
+}  // namespace mash