Fix crash under ExclusiveAccessBubbleViews::AnimationProgressed().

chrome/browser/ui/exclusive_access/fullscreen_controller_test.cc

Index: chrome/browser/ui/exclusive_access/fullscreen_controller_test.cc
diff --git a/chrome/browser/ui/exclusive_access/fullscreen_controller_test.cc b/chrome/browser/ui/exclusive_access/fullscreen_controller_test.cc
index 55e44ee9dd9210b3f20c2ed14701d015584f1d85..784d16d6489f41ee984f32fa2f2c9843814c7f37 100644
--- a/chrome/browser/ui/exclusive_access/fullscreen_controller_test.cc
+++ b/chrome/browser/ui/exclusive_access/fullscreen_controller_test.cc
@@ -88,3 +88,10 @@ void FullscreenControllerTest::Reload() {
 void FullscreenControllerTest::SetPrivilegedFullscreen(bool is_privileged) {
   GetFullscreenController()->SetPrivilegedFullscreenForTesting(is_privileged);
 }
+
+void FullscreenControllerTest::EnterActiveTabFullscreen() {
+  WebContents* tab = browser()->tab_strip_model()->GetActiveWebContents();
+  FullscreenNotificationObserver fullscreen_observer;
+  browser()->EnterFullscreenModeForTab(tab, GURL());
+  fullscreen_observer.Wait();
+}