Disable flaky tests in ChromeBrowsingDataRemoverDelegateTest.

ChromeBrowsingDataRemoverDelegateTest.RemoveSafeBrowsingCookie* are
flaking due to errors in the cookie store. It seems like the cookie
store is initialized incorrectly. Disabling until we can investigate
whether the problem is in the test setup or in the cookie store
initialization sequence.

TBR=msramek@chromium.org

Bug: 812589
Change-Id: I174790c0ed3518b88eca3e45304015113d5a5ba8
Reviewed-on: https://chromium-review.googlesource.com/924761Reviewed-by: Victor Costan <pwnall@chromium.org>
Reviewed-by: Dave Schuyler <dschuyler@chromium.org>
Commit-Queue: Victor Costan <pwnall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#537498}

chrome/browser/browsing_data/chrome_browsing_data_remover_delegate_unittest.cc

@@ -1254,7 +1254,10 @@ class ChromeBrowsingDataRemoverDelegateTest : public testing::Test {
   DISALLOW_COPY_AND_ASSIGN(ChromeBrowsingDataRemoverDelegateTest);
 };
 
-TEST_F(ChromeBrowsingDataRemoverDelegateTest, RemoveSafeBrowsingCookieForever) {
+// TODO(crbug.com/812589): Disabled due to flakiness in cookie store
+//                         initialization.
+TEST_F(ChromeBrowsingDataRemoverDelegateTest,
+       DISABLED_RemoveSafeBrowsingCookieForever) {
   RemoveSafeBrowsingCookieTester tester;
 
   tester.AddCookie();
@@ -1270,8 +1273,10 @@ TEST_F(ChromeBrowsingDataRemoverDelegateTest, RemoveSafeBrowsingCookieForever) {
   EXPECT_FALSE(tester.ContainsCookie());
 }
 
+// TODO(crbug.com/812589): Disabled due to flakiness in cookie store
+//                         initialization.
 TEST_F(ChromeBrowsingDataRemoverDelegateTest,
-       RemoveSafeBrowsingCookieLastHour) {
+       DISABLED_RemoveSafeBrowsingCookieLastHour) {
   RemoveSafeBrowsingCookieTester tester;
 
   tester.AddCookie();
@@ -1289,8 +1294,10 @@ TEST_F(ChromeBrowsingDataRemoverDelegateTest,
   EXPECT_TRUE(tester.ContainsCookie());
 }
 
+// TODO(crbug.com/812589): Disabled due to flakiness in cookie store
+//                         initialization.
 TEST_F(ChromeBrowsingDataRemoverDelegateTest,
-       RemoveSafeBrowsingCookieForeverWithPredicate) {
+       DISABLED_RemoveSafeBrowsingCookieForeverWithPredicate) {
   RemoveSafeBrowsingCookieTester tester;
 
   tester.AddCookie();