Disable PasswordManagerBrowserTest in browser_tests due to flakiness

Disabled these tests due to random failures:
PasswordManagerBrowserTest.HTMLLoginAfterHTTPAuthIsBlacklisted
PasswordManagerBrowserTest.NoPromptForSeperateLoginFormWhenSwitchingFromHttpsToHttp
PasswordManagerBrowserTest.Redirects
PasswordManagerBrowserTest.SameOriginIframeAutoFillTest

TBR=dvadym@chromium.org

No-Try: true
Bug: 1030579
Change-Id: I03ee08ec048ad85af50908d6d929db61b02793fe
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1949830Reviewed-by: Makoto Shimazu <shimazu@chromium.org>
Commit-Queue: Makoto Shimazu <shimazu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#721370}

chrome/browser/password_manager/password_manager_browsertest.cc

@@ -395,7 +395,8 @@ IN_PROC_BROWSER_TEST_F(PasswordManagerBrowserTest, LoginFailed) {
   EXPECT_FALSE(prompt_observer->IsSavePromptShownAutomatically());
 }
 
-IN_PROC_BROWSER_TEST_F(PasswordManagerBrowserTest, Redirects) {
+// Disabled due to flakiness: https://crbug.com/1030579.
+IN_PROC_BROWSER_TEST_F(PasswordManagerBrowserTest, DISABLED_Redirects) {
   NavigateToFile("/password/password_form.html");
 
   // Fill a form and submit through a <input type="submit"> button. The form
@@ -1500,9 +1501,11 @@ IN_PROC_BROWSER_TEST_F(PasswordManagerBrowserTest,
 
 // Tests whether a attempted submission of a malicious credentials gets blocked.
 // This simulates a case which is described in http://crbug.com/571580.
+//
+// Disabled due to flakiness: https://crbug.com/1030579.
 IN_PROC_BROWSER_TEST_F(
     PasswordManagerBrowserTest,
-    NoPromptForSeperateLoginFormWhenSwitchingFromHttpsToHttp) {
+    DISABLED_NoPromptForSeperateLoginFormWhenSwitchingFromHttpsToHttp) {
   std::string path = "/password/password_form.html";
   GURL https_url(https_test_server().GetURL(path));
   ASSERT_TRUE(https_url.SchemeIs(url::kHttpsScheme));
@@ -2290,8 +2293,10 @@ IN_PROC_BROWSER_TEST_F(PasswordManagerBrowserTest,
 
 // Check that a password form in an iframe of same origin will not be
 // filled in until user interact with the iframe.
+//
+// Disabled due to flakiness: https://crbug.com/1030579.
 IN_PROC_BROWSER_TEST_F(PasswordManagerBrowserTest,
-                       SameOriginIframeAutoFillTest) {
+                       DISABLED_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());
@@ -3704,8 +3709,10 @@ IN_PROC_BROWSER_TEST_F(PasswordManagerBrowserTest,
 // TODO(crbug.com/862930) If the inconsistency is fixed, please ensure that the
 // code for removing duplicates in password_manager_util.cc is updated and does
 // not remove blacklisted credentials which are no longer duplicates.
+//
+// Disabled due to flakiness: https://crbug.com/1030579.
 IN_PROC_BROWSER_TEST_F(PasswordManagerBrowserTest,
-                       HTMLLoginAfterHTTPAuthIsBlacklisted) {
+                       DISABLED_HTMLLoginAfterHTTPAuthIsBlacklisted) {
   for (bool is_realm_empty : {false, true}) {
     scoped_refptr<password_manager::TestPasswordStore> password_store =
         static_cast<password_manager::TestPasswordStore*>(