[Flake] Disabled SameOriginIframeAutoFillTest on Win7.

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 <utility>
 
 #include "base/command_line.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
@@ skipping 2013 matching lines @@
   // Verify password is not autofilled
   ASSERT_TRUE(content::ExecuteScriptAndExtractString(
       RenderViewHost(),
       "sendMessage('get_password');",
       &empty_password));
   ASSERT_EQ("", empty_password);
 }
 
 // Check that a password form in an iframe of same origin will not be
 // filled in until user interact with the iframe.
+// TODO(crbug.com/683209): Flaky on Win7 dbg.
+#if defined(OS_WIN)
+#define MAYBE_SameOriginIframeAutoFillTest DISABLED_SameOriginIframeAutoFillTest
+#else
+#define MAYBE_SameOriginIframeAutoFillTest SameOriginIframeAutoFillTest
+#endif
 IN_PROC_BROWSER_TEST_F(PasswordManagerBrowserTestBase,
-                       SameOriginIframeAutoFillTest) {
+                       MAYBE_SameOriginIframeAutoFillTest) {
   // Visit the sign-up form to store a password for autofill later
   NavigateToFile("/password/password_form_in_same_origin_iframe.html");
   NavigationObserver observer(WebContents());
   observer.SetPathToWaitFor("/password/done.html");
   std::unique_ptr<BubbleObserver> prompt_observer(
       new BubbleObserver(WebContents()));
 
   std::string submit =
       "var ifrmDoc = document.getElementById('iframe').contentDocument;"
       "ifrmDoc.getElementById('username_field').value = 'temp';"
@@ skipping 1114 matching lines @@
   // about all frames, not just the main one. The factories should receive
   // messages for non-main frames, in particular
   // AutofillHostMsg_PasswordFormsParsed. If that were the first time the
   // factories hear about such frames, this would crash.
   tab_strip_model->AddWebContents(detached_web_contents.release(), -1,
                                   ::ui::PAGE_TRANSITION_AUTO_TOPLEVEL,
                                   TabStripModel::ADD_ACTIVE);
 }
 
 }  // namespace password_manager