Fix a crash in FullscreenExitBubbleController when the user clicks the "Exit full screen" button.

chrome/browser/ui/cocoa/fullscreen_exit_bubble_controller_unittest.mm

Index: chrome/browser/ui/cocoa/fullscreen_exit_bubble_controller_unittest.mm
diff --git a/chrome/browser/ui/cocoa/fullscreen_exit_bubble_controller_unittest.mm b/chrome/browser/ui/cocoa/fullscreen_exit_bubble_controller_unittest.mm
index 6a293e2c1e079501adf1324fdda53486f9784512..65e3e93048ec4f38dc2fd18c0e0d688aec391bfb 100644
--- a/chrome/browser/ui/cocoa/fullscreen_exit_bubble_controller_unittest.mm
+++ b/chrome/browser/ui/cocoa/fullscreen_exit_bubble_controller_unittest.mm
@@ -4,7 +4,14 @@
 
 #import "chrome/browser/ui/cocoa/fullscreen_exit_bubble_controller.h"
 
-#include "chrome/browser/ui/cocoa/cocoa_test_helper.h"
+#include "chrome/browser/ui/browser.h"
+#include "chrome/browser/ui/browser_window.h"
+#include "chrome/browser/ui/cocoa/browser_window_controller.h"
+#include "chrome/browser/ui/cocoa/cocoa_profile_test.h"
+#include "chrome/browser/tabs/tab_strip_model.h"
+#include "chrome/common/chrome_notification_types.h"
+#include "chrome/test/base/ui_test_utils.h"
+#include "content/browser/site_instance.h"
 #include "testing/gtest_mac.h"
 #include "ui/base/models/accelerator_cocoa.h"
 
@@ -29,14 +36,16 @@
 }
 @end
 
-class FullscreenExitBubbleControllerTest : public CocoaTest {
+class FullscreenExitBubbleControllerTest : public CocoaProfileTest {
  public:
   virtual void SetUp() {
-    CocoaTest::SetUp();
+    CocoaProfileTest::SetUp();
+    ASSERT_TRUE(profile());
 
+    site_instance_ = SiteInstance::CreateSiteInstance(profile());
     controller_.reset(
         [[FullscreenExitBubbleController alloc] initWithOwner:nil
-                                                      browser:nil
+                                                      browser:browser()
                                                           url:GURL()
                       bubbleType:FEB_TYPE_BROWSER_FULLSCREEN_EXIT_INSTRUCTION]);
     EXPECT_TRUE([controller_ window]);
@@ -45,12 +54,52 @@ class FullscreenExitBubbleControllerTest : public CocoaTest {
   virtual void TearDown() {
     [controller_ close];
     controller_.reset();
-    CocoaTest::TearDown();
+    CocoaProfileTest::TearDown();
   }
 
+  void AppendTabToStrip() {
+    TabContentsWrapper* tab_contents = Browser::TabContentsFactory(
+        profile(), site_instance_, MSG_ROUTING_NONE,
+        NULL, NULL);
+    browser()->tabstrip_model()->AppendTabContents(
+        tab_contents, /*foreground=*/true);
+  }
+
+  scoped_refptr<SiteInstance> site_instance_;
   scoped_nsobject<FullscreenExitBubbleController> controller_;
 };
 
+TEST_F(FullscreenExitBubbleControllerTest, DenyExitsFullscreen) {
+  CreateBrowserWindow();
+  AppendTabToStrip();
+  TabContents* fullscreen_tab = browser()->GetSelectedTabContents();
+  {
+    base::mac::ScopedNSAutoreleasePool pool;
+    ui_test_utils::WindowedNotificationObserver fullscreen_observer(
+        chrome::NOTIFICATION_FULLSCREEN_CHANGED,
+        content::NotificationService::AllSources());
+    browser()->ToggleFullscreenModeForTab(fullscreen_tab, true);
+    fullscreen_observer.Wait();
+    ASSERT_TRUE(browser()->window()->IsFullscreen());
+  }
+
+  NSWindow* window = browser()->window()->GetNativeHandle();
+  BrowserWindowController* bwc = [BrowserWindowController
+      browserWindowControllerForWindow:window];
+  FullscreenExitBubbleController* bubble = [bwc fullscreenExitBubbleController];
+  ASSERT_TRUE(bubble);
+  {
+    ui_test_utils::WindowedNotificationObserver fullscreen_observer(
+        chrome::NOTIFICATION_FULLSCREEN_CHANGED,
+        content::NotificationService::AllSources());
+    [bubble deny:nil];
+    fullscreen_observer.Wait();
+  }
+  EXPECT_FALSE([bwc fullscreenExitBubbleController]);
+  EXPECT_FALSE(browser()->window()->IsFullscreen());
+  CloseBrowserWindow();
+}
+
 TEST_F(FullscreenExitBubbleControllerTest, LabelWasReplaced) {
   EXPECT_FALSE([controller_ exitLabelPlaceholder]);
   EXPECT_TRUE([controller_ exitLabel]);