Mark PrintPreviewUITest.PrintCommandDisabled flaky

BUG=69389
TEST=greener tree
TBR= thestig@chromium.org

Review URL: http://codereview.chromium.org/6273008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@71930 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/dom_ui/print_preview_ui_uitest.cc

@@ -47,7 +47,8 @@ TEST_F(PrintPreviewUITest, LoadPrintPreviewByURL) {
   AssertIsPrintPage(tab);
 }
 
-TEST_F(PrintPreviewUITest, PrintCommandDisabled) {
+// Flaky on interactive tests builder. See http://crbug.com/69389
+TEST_F(PrintPreviewUITest, FLAKY_PrintCommandDisabled) {
   scoped_refptr<BrowserProxy> browser(automation()->GetBrowserWindow(0));
   ASSERT_TRUE(browser.get());