Revert of https://codereview.chromium.org/112673006/

Reason for revert: Disabled wrong test

TBR=nasko@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=163411

Review URL: https://codereview.chromium.org/116353003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@242640 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/devtools/devtools_sanity_browsertest.cc

@@ -759,8 +759,8 @@ IN_PROC_BROWSER_TEST_F(DevToolsExtensionTest,
   RunTest("waitForTestResultsInConsole", std::string());
 }
 
-// Disabled on Windows and Mac OSX due to flakiness. http://crbug.com/183649
-#if defined(OS_WIN) || defined(OS_MACOSX)
+// Disabled on Windows due to flakiness. http://crbug.com/183649
+#if defined(OS_WIN)
 #define MAYBE_TestDevToolsExtensionMessaging DISABLED_TestDevToolsExtensionMessaging
 #else
 #define MAYBE_TestDevToolsExtensionMessaging TestDevToolsExtensionMessaging