Mark two tests as flaky on ChromeOS

chrome/browser/iframe_uitest.cc

Index: chrome/browser/iframe_uitest.cc
diff --git a/chrome/browser/iframe_uitest.cc b/chrome/browser/iframe_uitest.cc
index d2553444f4e883bd963125284df7c0599e2a9756..05fd6ec8bbafd6b5e247224b403bf1a0ac46d53a 100644
--- a/chrome/browser/iframe_uitest.cc
+++ b/chrome/browser/iframe_uitest.cc
@@ -23,6 +23,12 @@ TEST_F(IFrameTest, Crash) {
   NavigateAndVerifyTitle("iframe.html", L"iframe test");
 }
 
-TEST_F(IFrameTest, InEmptyFrame) {
+#if defined(OS_CHROMEOS)
+// Flakily crashes on ChromeOS: http://crbug.com/70192
+#define MAYBE_InEmptyFrame DISABLED_InEmptyFrame
+#else
+#define MAYBE_InEmptyFrame InEmptyFrame
+#endif
+TEST_F(IFrameTest, MAYBE_InEmptyFrame) {
   NavigateAndVerifyTitle("iframe_in_empty_frame.html", L"iframe test");
 }