mash: Migrate ScopedTargetRootWindow to //ash/common

chrome/browser/ui/window_sizer/window_sizer_ash_unittest.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/common/scoped_root_window_for_new_windows.h"
 #include "ash/common/wm/window_positioner.h"
 #include "ash/common/wm/window_resizer.h"
 #include "ash/common/wm/window_state.h"
-#include "ash/scoped_target_root_window.h"
+#include "ash/common/wm_shell.h"
+#include "ash/common/wm_window.h"
 #include "ash/screen_util.h"
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/wm/window_state_aura.h"
 #include "base/memory/ptr_util.h"
 #include "build/build_config.h"
 #include "chrome/browser/ui/ash/ash_util.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/window_sizer/window_sizer_common_unittest.h"
 #include "chrome/common/chrome_switches.h"
@@ skipping 535 matching lines @@
 #define MAYBE_PlaceNewWindowsOnMultipleDisplays DISABLED_PlaceNewWindowsOnMultipleDisplays
 #endif
 
 // Test the placement of newly created windows on multiple dislays.
 TEST_F(WindowSizerAshTest, MAYBE_PlaceNewWindowsOnMultipleDisplays) {
   UpdateDisplay("1600x1200,1600x1200");
   gfx::Rect primary_bounds =
       display::Screen::GetScreen()->GetPrimaryDisplay().bounds();
   gfx::Rect secondary_bounds = ash::ScreenUtil::GetSecondaryDisplay().bounds();
 
-  ash::Shell::GetInstance()->set_target_root_window(
-      ash::Shell::GetPrimaryRootWindow());
-
   std::unique_ptr<TestingProfile> profile(new TestingProfile());
 
   // Create browser windows that are used as reference.
   Browser::CreateParams params(profile.get());
   std::unique_ptr<Browser> browser(CreateTestBrowser(
       CreateTestWindowInShellWithId(0), gfx::Rect(10, 10, 200, 200), &params));
   BrowserWindow* browser_window = browser->window();
   gfx::NativeWindow native_window = browser_window->GetNativeWindow();
   browser_window->Show();
   EXPECT_EQ(native_window->GetRootWindow(), ash::Shell::GetTargetRootWindow());
@@ skipping 237 matching lines @@
 }
 
 // Test that the target root window is used as the destination of
 // the non browser window. This differ from PersistedBoundsCase
 // in that this uses real ash shell implementations + StateProvider
 // TargetDisplayProvider, rather than mocks.
 TEST_F(WindowSizerAshTest, DefaultBoundsInTargetDisplay) {
   if (!SupportsMultipleDisplays() || !chrome::ShouldOpenAshOnStartup())
     return;
   UpdateDisplay("500x500,600x600");
+
+  // By default windows are placed on the primary display.
+  ash::WmWindow* first_root = ash::WmShell::Get()->GetAllRootWindows()[0];
+  EXPECT_EQ(first_root, ash::WmShell::Get()->GetRootWindowForNewWindows());
+  gfx::Rect bounds;
+  ui::WindowShowState show_state;
+  WindowSizer::GetBrowserWindowBoundsAndShowState(std::string(), gfx::Rect(),
+                                                  NULL, &bounds, &show_state);
+  EXPECT_TRUE(first_root->GetBoundsInScreen().Contains(bounds));
+
   {
-    aura::Window* first_root =
-        ash::Shell::GetAllRootWindows()[0];
-    ash::ScopedTargetRootWindow tmp(first_root);
+    // When the second display is active new windows are placed there.
+    ash::WmWindow* second_root = ash::WmShell::Get()->GetAllRootWindows()[1];
+    ash::ScopedRootWindowForNewWindows tmp(second_root);
     gfx::Rect bounds;
     ui::WindowShowState show_state;
     WindowSizer::GetBrowserWindowBoundsAndShowState(
-        std::string(),
-        gfx::Rect(),
-        NULL,
-        &bounds,
-        &show_state);
-    EXPECT_TRUE(first_root->GetBoundsInScreen().Contains(bounds));
-  }
-  {
-    aura::Window* second_root =
-        ash::Shell::GetAllRootWindows()[1];
-    ash::ScopedTargetRootWindow tmp(second_root);
-    gfx::Rect bounds;
-    ui::WindowShowState show_state;
-    WindowSizer::GetBrowserWindowBoundsAndShowState(
         std::string(),
         gfx::Rect(),
         NULL,
         &bounds,
         &show_state);
     EXPECT_TRUE(second_root->GetBoundsInScreen().Contains(bounds));
   }
 }
 
 TEST_F(WindowSizerAshTest, TrustedPopupBehavior) {
@@ skipping 10 matching lines @@
   EXPECT_EQ(
       ui::SHOW_STATE_DEFAULT,
       GetWindowShowState(ui::SHOW_STATE_DEFAULT, ui::SHOW_STATE_NORMAL, BOTH,
                          trusted_popup.get(), p1280x1024, p1600x1200));
   // A popup that is sized to occupy the whole work area has default state.
   EXPECT_EQ(
       ui::SHOW_STATE_DEFAULT,
       GetWindowShowState(ui::SHOW_STATE_DEFAULT, ui::SHOW_STATE_NORMAL, BOTH,
                          trusted_popup.get(), p1600x1200, p1600x1200));
 }