Disable flaky testBrowsingPostToSamePage on devices.

ios/chrome/browser/web/browsing_egtest.mm

Index: ios/chrome/browser/web/browsing_egtest.mm
diff --git a/ios/chrome/browser/web/browsing_egtest.mm b/ios/chrome/browser/web/browsing_egtest.mm
index 7e4817ae7cae33af8f2478d3a2e2150a435735ab..404f8123e64421071f2de070a8b696139604730a 100644
--- a/ios/chrome/browser/web/browsing_egtest.mm
+++ b/ios/chrome/browser/web/browsing_egtest.mm
@@ -441,6 +441,11 @@ - (void)testTapLinkWithWebUIURL {
 // does not change the page and that the back button works as expected
 // afterwards.
 - (void)testBrowsingPostToSamePage {
+// TODO(crbug.com/714303): Re-enable this test on devices.
+#if !TARGET_IPHONE_SIMULATOR

[Eugene But (OOO till 7-30), 2017/04/21 22:49:25]

We normally use MAYBE_ macro for disabling tests on device. 

+  EARL_GREY_TEST_DISABLED(@"Test disabled on device.");
+#endif
+
   // Create map of canned responses and set up the test HTML server.
   std::map<GURL, std::string> responses;
   const GURL firstURL = web::test::HttpServer::MakeUrl("http://first");