Remove now-unnecessary wrappers around gfx::Screen::GetScreen()

ash/wm/window_state_unittest.cc

Index: ash/wm/window_state_unittest.cc
diff --git a/ash/wm/window_state_unittest.cc b/ash/wm/window_state_unittest.cc
index 4c95ce7476a761d2d79d6cdeca4c2aee313209a5..cac52069d181602328d51c69f5389412220f2fc9 100644
--- a/ash/wm/window_state_unittest.cc
+++ b/ash/wm/window_state_unittest.cc
@@ -58,7 +58,7 @@ TEST_F(WindowStateTest, SnapWindowBasic) {
 
   UpdateDisplay("0+0-500x400, 0+500-600x400");
   const gfx::Rect kPrimaryDisplayWorkAreaBounds =
-      ash::Shell::GetScreen()->GetPrimaryDisplay().work_area();
+      gfx::Screen::GetScreen()->GetPrimaryDisplay().work_area();
   const gfx::Rect kSecondaryDisplayWorkAreaBounds =
       ScreenUtil::GetSecondaryDisplay().work_area();
 
@@ -105,7 +105,7 @@ TEST_F(WindowStateTest, SnapWindowMinimumSize) {
 
   UpdateDisplay("0+0-600x900");
   const gfx::Rect kWorkAreaBounds =
-      ash::Shell::GetScreen()->GetPrimaryDisplay().work_area();
+      gfx::Screen::GetScreen()->GetPrimaryDisplay().work_area();
 
   aura::test::TestWindowDelegate delegate;
   scoped_ptr<aura::Window> window(CreateTestWindowInShellWithDelegate(
@@ -171,7 +171,7 @@ TEST_F(WindowStateTest, TestIgnoreTooBigMinimumSize) {
 
   UpdateDisplay("0+0-1024x768");
   const gfx::Size work_area_size =
-      ash::Shell::GetScreen()->GetPrimaryDisplay().work_area().size();
+      gfx::Screen::GetScreen()->GetPrimaryDisplay().work_area().size();
   const gfx::Size illegal_size(1280, 960);
   const gfx::Rect illegal_bounds(gfx::Point(0, 0), illegal_size);
 
@@ -202,7 +202,7 @@ TEST_F(WindowStateTest, SnapWindowSetBounds) {
 
   UpdateDisplay("0+0-900x600");
   const gfx::Rect kWorkAreaBounds =
-      ash::Shell::GetScreen()->GetPrimaryDisplay().work_area();
+      gfx::Screen::GetScreen()->GetPrimaryDisplay().work_area();
 
   scoped_ptr<aura::Window> window(
       CreateTestWindowInShellWithBounds(gfx::Rect(100, 100, 100, 100)));
@@ -278,7 +278,7 @@ TEST_F(WindowStateTest, AutoManaged) {
   window_state->OnWMEvent(&snap_right);
 
   const gfx::Rect kWorkAreaBounds =
-      ash::Shell::GetScreen()->GetPrimaryDisplay().work_area();
+      gfx::Screen::GetScreen()->GetPrimaryDisplay().work_area();
   gfx::Rect expected_snapped_bounds(
       kWorkAreaBounds.x() + kWorkAreaBounds.width() / 2,
       kWorkAreaBounds.y(),
@@ -323,7 +323,7 @@ TEST_F(WindowStateTest, RestoredWindowBoundsShrink) {
   WindowState* window_state = GetWindowState(window.get());
   EXPECT_FALSE(window_state->IsMaximized());
   gfx::Rect work_area =
-      ash::Shell::GetScreen()->GetPrimaryDisplay().work_area();
+      gfx::Screen::GetScreen()->GetPrimaryDisplay().work_area();
 
   window->SetBounds(work_area);
   window_state->Maximize();