Disable Flaky PolicyTest.Disable3DAPIs.

BUG=662693
TBR=bartfab@chromium.org, kainino@chromium.org

Review-Url: https://codereview.chromium.org/2477233002
Cr-Commit-Position: refs/heads/master@{#430210}

chrome/browser/policy/policy_browsertest.cc

@@ -1214,7 +1214,8 @@ IN_PROC_BROWSER_TEST_F(PolicyTest, ForceGoogleSafeSearch) {
   }
 }
 
-IN_PROC_BROWSER_TEST_F(PolicyTest, Disable3DAPIs) {
+// Flaky. See http://crbug.com/662693.
+IN_PROC_BROWSER_TEST_F(PolicyTest, DISABLED_Disable3DAPIs) {
   // This test assumes Gpu access.
   if (!content::GpuDataManager::GetInstance()->GpuAccessAllowed(NULL))
     return;