Disable OpenAudioFiles/FileManagerBrowserTest.

This test has been failing frequently on bots and closing the tree.

NOTRY=true
TBR=mtomasz@chromium.org
BUG=374097

Review URL: https://codereview.chromium.org/290613004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@270943 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/chromeos/file_manager/file_manager_browsertest.cc

@@ -738,8 +738,9 @@ INSTANTIATE_TEST_CASE_P(
                       TestParameter(NOT_IN_GUEST_MODE, "videoOpenDownloads"),
                       TestParameter(NOT_IN_GUEST_MODE, "videoOpenDrive")));
 
+// Disabled due to frequent failure; http://crbug.com/374097.
 INSTANTIATE_TEST_CASE_P(
-    OpenAudioFiles,
+    DISABLED_OpenAudioFiles,
     FileManagerBrowserTest,
     ::testing::Values(
         TestParameter(IN_GUEST_MODE, "audioOpenDownloads"),