Split out fullscreen logic from Browser into FullscreenController.

chrome/browser/ui/cocoa/browser_window_controller_unittest.mm

Index: chrome/browser/ui/cocoa/browser_window_controller_unittest.mm
diff --git a/chrome/browser/ui/cocoa/browser_window_controller_unittest.mm b/chrome/browser/ui/cocoa/browser_window_controller_unittest.mm
index 6b1b939a2ffdfc3aa2c987f0121c91f66339c0c4..0c6635b9444d7f001dbe13f31b215e6a13c74155 100644
--- a/chrome/browser/ui/cocoa/browser_window_controller_unittest.mm
+++ b/chrome/browser/ui/cocoa/browser_window_controller_unittest.mm
@@ -688,6 +688,7 @@ static bool IsFrontWindow(NSWindow *window) {
 }
 
 TEST_F(BrowserWindowFullScreenControllerTest, TestFullscreenNotLion) {
+  CreateBrowserWindow();
   EXPECT_FALSE([controller_ isFullscreen]);
   [controller_ enterFullscreenForURL:GURL()
                        bubbleType:FEB_TYPE_BROWSER_FULLSCREEN_EXIT_INSTRUCTION];
@@ -701,6 +702,7 @@ TEST_F(BrowserWindowFullScreenControllerTest, TestFullscreenNotLion) {
 // please do not mark it as flaky without first verifying that there are no bot
 // problems.
 TEST_F(BrowserWindowFullScreenControllerTest, TestActivateNotLion) {
+  CreateBrowserWindow();
   EXPECT_FALSE([controller_ isFullscreen]);
 
   [controller_ activate];