Separate ash::test::DisplayManagerTestApi from ash

ash/wm/workspace/workspace_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/common/wm/workspace/workspace_window_resizer.h"
 
 #include "ash/aura/wm_window_aura.h"
 #include "ash/common/shelf/shelf_constants.h"
 #include "ash/common/shelf/wm_shelf.h"
 #include "ash/common/shell_window_ids.h"
@@ skipping 583 matching lines @@
     return;
 
   // Restore the window to clear snapped state.
   window_state->Restore();
 
   UpdateDisplay("800x600,500x600");
   aura::Window::Windows root_windows = Shell::GetAllRootWindows();
   EXPECT_EQ(root_windows[0], window_->GetRootWindow());
   // Window is wide enough not to get docked right away.
   window_->SetBoundsInScreen(gfx::Rect(800, 10, 400, 60),
-                             ScreenUtil::GetSecondaryDisplay());
+                             display_manager()->GetSecondaryDisplay());
   EXPECT_EQ(root_windows[1], window_->GetRootWindow());
   {
     EXPECT_EQ("800,10 400x60", window_->GetBoundsInScreen().ToString());
 
     std::unique_ptr<WindowResizer> resizer(
         CreateResizerForTest(window_.get(), gfx::Point(), HTCAPTION));
     ASSERT_TRUE(resizer.get());
     resizer->Drag(CalculateDragPoint(*resizer, 499, 0), 0);
     int bottom =
         ScreenUtil::GetDisplayWorkAreaBoundsInParent(window_.get()).bottom();
@@ skipping 196 matching lines @@
     return;
 
   UpdateDisplay("800x600,800x600");
   ASSERT_EQ(2, display::Screen::GetScreen()->GetNumDisplays());
 
   Shell::GetInstance()->SetDisplayWorkAreaInsets(Shell::GetPrimaryRootWindow(),
                                                  gfx::Insets(0, 0, 10, 0));
 
   // Positions the secondary display at the bottom the primary display.
   Shell::GetInstance()->display_manager()->SetLayoutForCurrentDisplays(
-      test::CreateDisplayLayout(display::DisplayPlacement::BOTTOM, 0));
+      test::CreateDisplayLayout(display_manager(),
+                                display::DisplayPlacement::BOTTOM, 0));
 
   {
     window_->SetBounds(gfx::Rect(100, 200, 300, 20));
     DCHECK_LT(window_->bounds().height(),
               WorkspaceWindowResizer::kMinOnscreenHeight);
     // Drag down avoiding dragging along the edge as that would side-snap.
     std::unique_ptr<WindowResizer> resizer(
         CreateResizerForTest(window_.get(), gfx::Point(10, 0), HTCAPTION));
     ASSERT_TRUE(resizer.get());
     resizer->Drag(CalculateDragPoint(*resizer, 0, 400), 0);
@@ skipping 1048 matching lines @@
             touch_resize_window_->bounds().ToString());
   // Drag even more to snap to the edge.
   generator.GestureScrollSequence(gfx::Point(400, kRootHeight - 40),
                                   gfx::Point(400, kRootHeight - 25),
                                   base::TimeDelta::FromMilliseconds(10), 5);
   EXPECT_EQ(gfx::Rect(100, 100, 600, kRootHeight - 100).ToString(),
             touch_resize_window_->bounds().ToString());
 }
 
 }  // namespace ash