Skip mulitple-dispay tests on win8

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/display/mouse_cursor_event_filter.h"
 #include "ash/root_window_controller.h"
 #include "ash/shelf/shelf_layout_manager.h"
 #include "ash/shell.h"
@@ skipping 117 matching lines @@
   scoped_ptr<aura::Window> panel_window_;
   aura::Window* transient_child_;
   scoped_ptr<aura::Window> transient_parent_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(DragWindowResizerTest);
 };
 
 // Verifies a window can be moved from the primary display to another.
 TEST_F(DragWindowResizerTest, WindowDragWithMultiDisplays) {
+  if (!SupportsMultipleDisplays())
+    return;
+
   // The secondary display is logically on the right, but on the system (e.g. X)
   // layer, it's below the primary one. See UpdateDisplay() in ash_test_base.cc.
   UpdateDisplay("800x600,800x600");
   shelf_layout_manager()->LayoutShelf();
   Shell::RootWindowList root_windows = Shell::GetAllRootWindows();
   ASSERT_EQ(2U, root_windows.size());
 
   window_->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
                              Shell::GetScreen()->GetPrimaryDisplay());
   EXPECT_EQ(root_windows[0], window_->GetRootWindow());
@@ skipping 42 matching lines @@
     // Since the pointer is on the secondary, the parent should be changed
     // even though only small fraction of the window is within the secondary
     // root window's bounds.
     EXPECT_EQ(root_windows[1], window_->GetRootWindow());
     EXPECT_EQ("-49,10 50x60", window_->bounds().ToString());
   }
 }
 
 // Verifies a window can be moved from the secondary display to primary.
 TEST_F(DragWindowResizerTest, WindowDragWithMultiDisplaysRightToLeft) {
+  if (!SupportsMultipleDisplays())
+    return;
+
   UpdateDisplay("800x600,800x600");
   shelf_layout_manager()->LayoutShelf();
   Shell::RootWindowList root_windows = Shell::GetAllRootWindows();
   ASSERT_EQ(2U, root_windows.size());
 
   window_->SetBoundsInScreen(
       gfx::Rect(800, 00, 50, 60),
       Shell::GetScreen()->GetDisplayNearestWindow(root_windows[1]));
   EXPECT_EQ(root_windows[1], window_->GetRootWindow());
   {
     // Grab (0, 0) of the window.
     scoped_ptr<DragWindowResizer> resizer(CreateDragWindowResizer(
         window_.get(), gfx::Point(), HTCAPTION));
     ASSERT_TRUE(resizer.get());
     // Move the mouse near the right edge, (798, 0), of the primary display.
     resizer->Drag(CalculateDragPoint(*resizer, -2, 0), ui::EF_CONTROL_DOWN);
     resizer->CompleteDrag(0);
     EXPECT_EQ(root_windows[0], window_->GetRootWindow());
     EXPECT_EQ("798,0 50x60", window_->bounds().ToString());
   }
 }
 
 // Verifies the drag window is shown correctly.
 TEST_F(DragWindowResizerTest, DragWindowController) {
+  if (!SupportsMultipleDisplays())
+    return;
+
   UpdateDisplay("800x600,800x600");
   Shell::RootWindowList root_windows = Shell::GetAllRootWindows();
   ASSERT_EQ(2U, root_windows.size());
 
   window_->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
                              Shell::GetScreen()->GetPrimaryDisplay());
   EXPECT_EQ(root_windows[0], window_->GetRootWindow());
   EXPECT_FLOAT_EQ(1.0f, window_->layer()->opacity());
   {
     scoped_ptr<DragWindowResizer> resizer(CreateDragWindowResizer(
@@ skipping 107 matching lines @@
               event_filter->mouse_warp_mode_);
     resizer->RevertDrag();
   }
   EXPECT_EQ(MouseCursorEventFilter::WARP_ALWAYS,
             event_filter->mouse_warp_mode_);
 }
 
 // Verifies cursor's device scale factor is updated whe a window is moved across
 // root windows with different device scale factors (http://crbug.com/154183).
 TEST_F(DragWindowResizerTest, CursorDeviceScaleFactor) {
+  if (!SupportsMultipleDisplays())
+    return;
+
   // The secondary display is logically on the right, but on the system (e.g. X)
   // layer, it's below the primary one. See UpdateDisplay() in ash_test_base.cc.
   UpdateDisplay("400x400,800x800*2");
   shelf_layout_manager()->LayoutShelf();
   Shell::RootWindowList root_windows = Shell::GetAllRootWindows();
   ASSERT_EQ(2U, root_windows.size());
 
   test::CursorManagerTestApi cursor_test_api(
       Shell::GetInstance()->cursor_manager());
   MouseCursorEventFilter* event_filter =
@@ skipping 33 matching lines @@
     event_filter->WarpMouseCursorIfNecessary(root_windows[1],
                                              gfx::Point(400, 200));
     EXPECT_EQ(1.0f, cursor_test_api.GetDisplay().device_scale_factor());
     resizer->CompleteDrag(0);
     EXPECT_EQ(1.0f, cursor_test_api.GetDisplay().device_scale_factor());
   }
 }
 
 // Verifies several kinds of windows can be moved across displays.
 TEST_F(DragWindowResizerTest, MoveWindowAcrossDisplays) {
+  if (!SupportsMultipleDisplays())
+    return;
+
   // The secondary display is logically on the right, but on the system (e.g. X)
   // layer, it's below the primary one. See UpdateDisplay() in ash_test_base.cc.
   UpdateDisplay("400x400,400x400");
   shelf_layout_manager()->LayoutShelf();
 
   Shell::RootWindowList root_windows = Shell::GetAllRootWindows();
   ASSERT_EQ(2U, root_windows.size());
   MouseCursorEventFilter* event_filter =
       Shell::GetInstance()->mouse_cursor_filter();
 
@@ skipping 84 matching lines @@
     ASSERT_TRUE(resizer.get());
     resizer->Drag(CalculateDragPoint(*resizer, 399, 200), 0);
     EXPECT_TRUE(event_filter->WarpMouseCursorIfNecessary(root_windows[0],
                                                          gfx::Point(399, 200)));
     resizer->CompleteDrag(0);
   }
 }
 
 }  // namespace internal
 }  // namespace ash