Disable flaky PreferPasswordFormManagerWhichFinishedMatching on Mac.

chrome/browser/password_manager/password_manager_browsertest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/metrics/histogram_samples.h"
 #include "base/metrics/statistics_recorder.h"
 #include "base/path_service.h"
@@ skipping 1348 matching lines @@
   run_loop.RunUntilIdle();
   EXPECT_FALSE(password_store->IsEmpty());
 }
 
 // In some situations, multiple PasswordFormManager instances from
 // PasswordManager::pending_login_managers_ would match (via DoesManage) a form
 // to be provisionally saved. One of them might be a complete match, the other
 // all-but-action match. Normally, the former should be preferred, but if the
 // former has not finished matching, and the latter has, the latter should be
 // used (otherwise we'd give up even though we could have saved the password).
+//
+// Disabled on Mac due to flakiness: http://crbug.com/477812
+#if defined(OS_MACOSX)
+#define MAYBE_PreferPasswordFormManagerWhichFinishedMatching \
+  DISABLED_PreferPasswordFormManagerWhichFinishedMatching
+#else
+#define MAYBE_PreferPasswordFormManagerWhichFinishedMatching \
+  PreferPasswordFormManagerWhichFinishedMatching
+#endif
 IN_PROC_BROWSER_TEST_F(PasswordManagerBrowserTest,
-                       PreferPasswordFormManagerWhichFinishedMatching) {
+                       MAYBE_PreferPasswordFormManagerWhichFinishedMatching) {
   NavigateToFile("/password/create_form_copy_on_submit.html");
 
   NavigationObserver observer(WebContents());
   scoped_ptr<PromptObserver> prompt_observer(
       PromptObserver::Create(WebContents()));
   std::string submit =
       "document.getElementById('username').value = 'overwrite_me';"
       "document.getElementById('password').value = 'random';"
       "document.getElementById('non-form-button').click();";
   ASSERT_TRUE(content::ExecuteScript(RenderViewHost(), submit));
@@ skipping 516 matching lines @@
   NavigateToFile("/password/password_xhr_submit.html");
 
   // Let the user interact with the page, so that DOM gets modification events,
   // needed for autofilling fields.
   content::SimulateMouseClickAt(
       WebContents(), 0, blink::WebMouseEvent::ButtonLeft, gfx::Point(1, 1));
 
   // Wait until that interaction causes the password value to be revealed.
   WaitForElementValue("password_field", "mypassword");
 }