Moves maintaining root_window_for_new_windows_ to Shell

ash/wm/drag_window_resizer_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/wm/drag_window_resizer.h"
 
 #include "ash/common/shelf/shelf_layout_manager.h"
 #include "ash/common/wm/window_positioning_utils.h"
 #include "ash/common/wm_window.h"
 #include "ash/display/mouse_cursor_event_filter.h"
@@ skipping 291 matching lines @@
   std::unique_ptr<aura::Window> window(new aura::Window(&delegate));
   window->SetType(ui::wm::WINDOW_TYPE_NORMAL);
   window->Init(ui::LAYER_TEXTURED);
   ParentWindowInPrimaryRootWindow(window.get());
   window->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
                             display::Screen::GetScreen()->GetPrimaryDisplay());
   window->Show();
   EXPECT_TRUE(ash::wm::CanActivateWindow(window.get()));
   ash::wm::ActivateWindow(window.get());
   EXPECT_EQ(root_windows[0], window->GetRootWindow());
-  EXPECT_EQ(root_windows[0], ash::Shell::GetTargetRootWindow());
+  EXPECT_EQ(root_windows[0], ash::Shell::GetRootWindowForNewWindows());

[James Cook, 2017/03/08 20:19:17]

nit: I don't think ash:: is needed, here or below

[sky, 2017/03/08 20:42:59]

Done.

   {
     // Grab (0, 0) of the window.
     std::unique_ptr<WindowResizer> resizer(
         CreateDragWindowResizer(window.get(), gfx::Point(), HTCAPTION));
     ASSERT_TRUE(resizer.get());
     // Drag the pointer to the right. Once it reaches the right edge of the
     // primary display, it warps to the secondary.
     resizer->Drag(CalculateDragPoint(*resizer, 800, 10), 0);
     resizer->CompleteDrag();
     // The whole window is on the secondary display now. The parent should be
     // changed.
     EXPECT_EQ(root_windows[1], window->GetRootWindow());
-    EXPECT_EQ(root_windows[1], ash::Shell::GetTargetRootWindow());
+    EXPECT_EQ(root_windows[1], ash::Shell::GetRootWindowForNewWindows());
   }
 }
 
 // Verifies a window can be moved from the secondary display to primary.
 TEST_F(DragWindowResizerTest, WindowDragWithMultiDisplaysRightToLeft) {
   UpdateDisplay("800x600,800x600");
   aura::Window::Windows root_windows = Shell::GetAllRootWindows();
   ASSERT_EQ(2U, root_windows.size());
 
   window_->SetBoundsInScreen(
@@ skipping 409 matching lines @@
     ASSERT_TRUE(resizer.get());
     resizer->Drag(CalculateDragPoint(*resizer, 399, 200), 0);
     EXPECT_TRUE(TestIfMouseWarpsAt(gfx::Point(399, 200)));
     EXPECT_EQ("401,200",
               aura::Env::GetInstance()->last_mouse_location().ToString());
     resizer->CompleteDrag();
   }
 }
 
 }  // namespace ash