Disable IsolatedAppTest.NoCookieIsolationWithoutApp due to flakiness.

chrome/browser/extensions/isolated_app_browsertest.cc

Index: chrome/browser/extensions/isolated_app_browsertest.cc
diff --git a/chrome/browser/extensions/isolated_app_browsertest.cc b/chrome/browser/extensions/isolated_app_browsertest.cc
index da7d402b57bb75bba687766973c836e621c2d7c4..82b153ff0ae8539a3070aaccc7744117ae55d8d9 100644
--- a/chrome/browser/extensions/isolated_app_browsertest.cc
+++ b/chrome/browser/extensions/isolated_app_browsertest.cc
@@ -174,8 +174,9 @@ IN_PROC_BROWSER_TEST_F(IsolatedAppTest, CookieIsolation) {
 
 }
 
+// This test is disabled due to being flaky. http://crbug.com/145588
 // Ensure that cookies are not isolated if the isolated apps are not installed.
-IN_PROC_BROWSER_TEST_F(IsolatedAppTest, NoCookieIsolationWithoutApp) {
+IN_PROC_BROWSER_TEST_F(IsolatedAppTest, DISABLED_NoCookieIsolationWithoutApp) {
   host_resolver()->AddRule("*", "127.0.0.1");
   ASSERT_TRUE(test_server()->Start());