Relocate display_manager from ash to ui

ash/display/root_window_transformers_unittest.cc

Index: ash/display/root_window_transformers_unittest.cc
diff --git a/ash/display/root_window_transformers_unittest.cc b/ash/display/root_window_transformers_unittest.cc
index d4a11b9b85c7e2016cc7f59fc7b2b7974a1131d9..409b3dcba71b632971201557f21cdabf749c7cf3 100644
--- a/ash/display/root_window_transformers_unittest.cc
+++ b/ash/display/root_window_transformers_unittest.cc
@@ -7,7 +7,6 @@
 #include <memory>
 
 #include "ash/common/shelf/shelf_widget.h"
-#include "ash/display/display_manager.h"
 #include "ash/display/display_util.h"
 #include "ash/host/root_window_transformer.h"
 #include "ash/magnifier/magnification_controller.h"
@@ -15,7 +14,6 @@
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/test/cursor_manager_test_api.h"
-#include "ash/test/display_manager_test_api.h"
 #include "ash/test/mirror_window_test_api.h"
 #include "base/synchronization/waitable_event.h"
 #include "ui/aura/env.h"
@@ -23,8 +21,10 @@
 #include "ui/aura/window_tracker.h"
 #include "ui/display/display.h"
 #include "ui/display/manager/display_layout.h"
+#include "ui/display/manager/display_manager.h"
 #include "ui/display/manager/managed_display_info.h"
 #include "ui/display/screen.h"
+#include "ui/display/test/display_manager_test_api.h"
 #include "ui/events/event_handler.h"
 #include "ui/events/test/event_generator.h"
 #include "ui/gfx/geometry/rect_conversions.h"
@@ -204,8 +204,9 @@ TEST_F(RootWindowTransformersTest, MAYBE_RotateAndMagnify) {
   EXPECT_EQ(display::Display::ROTATE_0, GetActiveDisplayRotation(display2_id));
   magnifier->SetEnabled(false);
 
-  display_manager()->SetLayoutForCurrentDisplays(test::CreateDisplayLayout(
-      display_manager(), display::DisplayPlacement::BOTTOM, 50));
+  display_manager()->SetLayoutForCurrentDisplays(
+      display::test::CreateDisplayLayout(
+          display_manager(), display::DisplayPlacement::BOTTOM, 50));
   EXPECT_EQ("50,120 150x200",
             display_manager()->GetSecondaryDisplay().bounds().ToString());
 
@@ -263,8 +264,8 @@ TEST_F(RootWindowTransformersTest, ScaleAndMagnify) {
   UpdateDisplay("600x400*2@1.5,500x300");
 
   display::Display display1 = display::Screen::GetScreen()->GetPrimaryDisplay();
-  test::ScopedSetInternalDisplayId set_internal(display_manager(),
-                                                display1.id());
+  display::test::ScopedSetInternalDisplayId set_internal(display_manager(),
+                                                         display1.id());
   display::Display display2 = display_manager()->GetSecondaryDisplay();
   aura::Window::Windows root_windows = Shell::GetAllRootWindows();
   MagnificationController* magnifier =
@@ -424,7 +425,7 @@ TEST_F(RootWindowTransformersTest, LetterBoxPillarBox) {
   if (!SupportsMultipleDisplays())
     return;
   test::MirrorWindowTestApi test_api;
-  display_manager()->SetMultiDisplayMode(DisplayManager::MIRRORING);
+  display_manager()->SetMultiDisplayMode(display::DisplayManager::MIRRORING);
   UpdateDisplay("400x200,500x500");
   std::unique_ptr<RootWindowTransformer> transformer(
       CreateCurrentRootWindowTransformerForMirroring());