Disable flaky ImageTransportFactoryBrowserTest.TestLostContext on ChromeOS.

content/browser/compositor/image_transport_factory_browsertest.cc

Index: content/browser/compositor/image_transport_factory_browsertest.cc
diff --git a/content/browser/compositor/image_transport_factory_browsertest.cc b/content/browser/compositor/image_transport_factory_browsertest.cc
index 61f1bbf107ff25c7c0ba923bf73e700e3beaa9cd..724f0db6bd97959a417feae6f1520046e7232b1a 100644
--- a/content/browser/compositor/image_transport_factory_browsertest.cc
+++ b/content/browser/compositor/image_transport_factory_browsertest.cc
@@ -24,9 +24,9 @@ class MockImageTransportFactoryObserver : public ImageTransportFactoryObserver {
   MOCK_METHOD0(OnLostResources, void());
 };
 
-// This crashes on Mac ASAN
-// http://crbug.com/335083
-#if defined(OS_MACOSX)
+// This crashes on Mac ASAN: http://crbug.com/335083
+// Flaky on ChromeOS: crbug.com/394083
+#if defined(OS_MACOSX) || defined(OS_CHROMEOS)
 #define MAYBE_TestLostContext DISABLED_TestLostContext
 #else
 #define MAYBE_TestLostContext TestLostContext