ash: Fix VideoDetectorTest's WindowState usage.

ash/wm/video_detector_unittest.cc

Index: ash/wm/video_detector_unittest.cc
diff --git a/ash/wm/video_detector_unittest.cc b/ash/wm/video_detector_unittest.cc
index 7bd1ab98014ae7c58c981725c941d156a31e179c..025de6370f485ace010b0954b3704492ffff85b9 100644
--- a/ash/wm/video_detector_unittest.cc
+++ b/ash/wm/video_detector_unittest.cc
@@ -284,10 +284,10 @@ TEST_F(VideoDetectorTest, FullscreenWindow) {
   const gfx::Rect kLeftBounds(gfx::Point(), gfx::Size(1024, 768));
   scoped_ptr<aura::Window> window(
       CreateTestWindowInShell(SK_ColorRED, 12345, kLeftBounds));
-  wm::WindowState window_state(window.get());
+  wm::WindowState* window_state = wm::GetWindowState(window.get());
   const wm::WMEvent toggle_fullscreen_event(wm::WM_EVENT_TOGGLE_FULLSCREEN);
-  window_state.OnWMEvent(&toggle_fullscreen_event);
-  ASSERT_TRUE(window_state.IsFullscreen());
+  window_state->OnWMEvent(&toggle_fullscreen_event);
+  ASSERT_TRUE(window_state->IsFullscreen());
   window->Focus();
   const gfx::Rect kUpdateRegion(
       gfx::Point(),
@@ -301,14 +301,14 @@ TEST_F(VideoDetectorTest, FullscreenWindow) {
 
   // Make the first window non-fullscreen and open a second fullscreen window on
   // a different desktop.
-  window_state.OnWMEvent(&toggle_fullscreen_event);
-  ASSERT_FALSE(window_state.IsFullscreen());
+  window_state->OnWMEvent(&toggle_fullscreen_event);
+  ASSERT_FALSE(window_state->IsFullscreen());
   const gfx::Rect kRightBounds(gfx::Point(1024, 0), gfx::Size(1024, 768));
   scoped_ptr<aura::Window> other_window(
       CreateTestWindowInShell(SK_ColorBLUE, 6789, kRightBounds));
-  wm::WindowState other_window_state(other_window.get());
-  other_window_state.OnWMEvent(&toggle_fullscreen_event);
-  ASSERT_TRUE(other_window_state.IsFullscreen());
+  wm::WindowState* other_window_state = wm::GetWindowState(other_window.get());
+  other_window_state->OnWMEvent(&toggle_fullscreen_event);
+  ASSERT_TRUE(other_window_state->IsFullscreen());
 
   // When video is detected in the first (now non-fullscreen) window, fullscreen
   // video should still be reported due to the second window being fullscreen.
@@ -324,8 +324,8 @@ TEST_F(VideoDetectorTest, FullscreenWindow) {
 
   // Make the second window non-fullscreen and check that the next video report
   // is non-fullscreen.
-  other_window_state.OnWMEvent(&toggle_fullscreen_event);
-  ASSERT_FALSE(other_window_state.IsFullscreen());
+  other_window_state->OnWMEvent(&toggle_fullscreen_event);
+  ASSERT_FALSE(other_window_state->IsFullscreen());
   observer_->reset_stats();
   AdvanceTime(base::TimeDelta::FromSeconds(2));
   for (int i = 0; i < VideoDetector::kMinFramesPerSecond; ++i)