Re-enable some autofill tests that were previously disabled for flake.

chrome/browser/autofill/form_structure_browsertest.cc

Index: chrome/browser/autofill/form_structure_browsertest.cc
diff --git a/chrome/browser/autofill/form_structure_browsertest.cc b/chrome/browser/autofill/form_structure_browsertest.cc
index ed186a911ff9ec95ea1d6b054162745e07d95faf..48447da2ec2ea4e34e3c1dae9959900ecef5cc1e 100644
--- a/chrome/browser/autofill/form_structure_browsertest.cc
+++ b/chrome/browser/autofill/form_structure_browsertest.cc
@@ -104,7 +104,7 @@ std::string FormStructureBrowserTest::FormStructuresToString(
 // Heuristics tests timeout on Windows.  See http://crbug.com/85276
 // Also on ChromeOS/Aura. See crbug.com/173621
 // On Linux too. See crbug.com/323093

[Ilya Sherman, 2014/09/25 21:52:36]

Please update these comments, as appropriate.

[Evan Stade, 2014/09/25 22:08:22]

Done.

-#if defined(USE_AURA)
+#if defined(OS_WIN)
 #define MAYBE_DataDrivenHeuristics(n) DISABLED_DataDrivenHeuristics##n
 #else
 #define MAYBE_DataDrivenHeuristics(n) DataDrivenHeuristics##n
@@ -251,8 +251,9 @@ IN_PROC_BROWSER_TEST_F(FormStructureBrowserTest,
                     kFileNamePattern);
 }
 
+// This test has real failures. crbug.com/323093

[Ilya Sherman, 2014/09/25 21:52:36]

nit: Please prepend "http://" to the link.

[Evan Stade, 2014/09/25 22:08:22]

Done.

 IN_PROC_BROWSER_TEST_F(FormStructureBrowserTest,
-    MAYBE_DataDrivenHeuristics(16)) {
+    DISABLED_DataDrivenHeuristics16) {
   const base::FilePath::CharType kFileNamePattern[] =
       FILE_PATH_LITERAL("16_*.html");
   RunDataDrivenTest(GetInputDirectory(kTestName),