Remove FLAKY modifier from CrossOriginXHRFileAccess, it hasn't failed in the past month.

chrome/browser/extensions/cross_origin_xhr_apitest.cc

Index: chrome/browser/extensions/cross_origin_xhr_apitest.cc
diff --git a/chrome/browser/extensions/cross_origin_xhr_apitest.cc b/chrome/browser/extensions/cross_origin_xhr_apitest.cc
index 790901965fc702ffffaf3e0ae9d00b04b1bda8fc..7f678976e16ae4dce851dfd172c452a60584d476 100644
--- a/chrome/browser/extensions/cross_origin_xhr_apitest.cc
+++ b/chrome/browser/extensions/cross_origin_xhr_apitest.cc
@@ -23,14 +23,7 @@ IN_PROC_BROWSER_TEST_F(ExtensionApiTest, CrossOriginXHRContentScript) {
   ASSERT_TRUE(RunExtensionTest("cross_origin_xhr/content_script")) << message_;
 }
 
-// Flaky on Mac 10.5, crbug.com/105179.
-#if defined(OS_MACOSX)
-#define MAYBE_CrossOriginXHRFileAccess FLAKY_CrossOriginXHRFileAccess
-#else
-#define MAYBE_CrossOriginXHRFileAccess CrossOriginXHRFileAccess
-#endif
-
-IN_PROC_BROWSER_TEST_F(ExtensionApiTest, MAYBE_CrossOriginXHRFileAccess) {
+IN_PROC_BROWSER_TEST_F(ExtensionApiTest, CrossOriginXHRFileAccess) {
   ASSERT_TRUE(RunExtensionTest("cross_origin_xhr/file_access")) << message_;
 }