Revert r163630 "Disable flaky test "AppModeTest.EnableAppModeTest" on windows."

chrome/browser/ui/browser_browsertest.cc

Index: chrome/browser/ui/browser_browsertest.cc
diff --git a/chrome/browser/ui/browser_browsertest.cc b/chrome/browser/ui/browser_browsertest.cc
index af17bfbbfb1791f847c874faffe8b7ca2688151e..fe91f07569b24bf76a569e4930c0a234392e5058 100644
--- a/chrome/browser/ui/browser_browsertest.cc
+++ b/chrome/browser/ui/browser_browsertest.cc
@@ -1700,14 +1700,7 @@ class AppModeTest : public BrowserTest {
   }
 };
 
-// Check failed on Win only.  http://crbug.com/163630
-#if defined(OS_WIN)
-#define MAYBE_EnableAppModeTest DISABLED_EnableAppModeTest
-#else
-#define MAYBE_EnableAppModeTest EnableAppModeTest
-#endif
-
-IN_PROC_BROWSER_TEST_F(AppModeTest, MAYBE_EnableAppModeTest) {
+IN_PROC_BROWSER_TEST_F(AppModeTest, EnableAppModeTest) {
   // Test that an application browser window loads correctly.
 
   // Verify the browser is in application mode.