Filed by sheriff-o-matic@appspot.gserviceaccount.com on behalf of shimazu@chromium.org

sync_integration_tests failing on chromium.win/Win10 Tests x64 (dbg)

Builders failed on: 
- Win10 Tests x64 (dbg): 
  https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/Win10%20Tests%20x64%20%28dbg%29

== description ==
Bunch of tests in sync_integration_tests frequently fail. In the bad builds, stdout contains some message about Sync HTTP server as follows.
You can see the full stdout from here:
https://logs.chromium.org/logs/chromium/buildbucket/cr-buildbucket.appspot.com/8938403586906328208/+/steps/sync_integration_tests_on_Windows-10-15063/0/stdout

-- part of stdout --
Sync HTTP server started at 127.0.0.1:58836/chromiumsync...
Fake OAuth2 Token server started at 127.0.0.1:58836/o/oauth2/token...
Sync XMPP server started at 127.0.0.1:58838...
sending server_data: {"xmpp_port": 58838, "host": "127.0.0.1", "port": 58836} (56 bytes)
[6032:6836:0812/035931.286:WARNING:discovery_network_list_win.cc(195)] Failed to open Wlan client handle: 1062
[6032:6812:0812/035931.398:WARNING:chrome_browser_main_win.cc(641)] Command line too long for RegisterApplicationRestart:  --brave-new-test-launcher --cfi-diag=0 --disable-gpu-process-for-dx12-vulkan-info-collection --gtest_also_run_disabled_tests --gtest_filter=MigrationSingleClientTest.PrefsOnlyModifyPref --single_process --test-launcher-bot-mode --test-launcher-output="C:\b\s\w\it2u2ref\scoped_dir7120_2035\results7120_4689\test_results.xml" --test-launcher-summary-output="C:\b\s\w\io5limwz\output.json" --user-data-dir="C:\b\s\w\it2u2ref\scoped_dir7120_2035\d7120_30513" --sync-url=http://127.0.0.1:58836/chromiumsync --sync-notification-host-port=127.0.0.1:58838 --sync-allow-insecure-xmpp-connection --disable-offline-auto-reload --disable-background-networking --sync-short-initial-retry-override --sync-short-nudge-delay-for-test --no-first-run --no-default-browser-check --enable-logging=stderr --disable-default-apps --wm-window-animations-disabled --disable-component-update --test-type=browser --force-color-profile=srgb --disable-zero-browsers-open-for-tests --ipc-connection-timeout=45 --allow-file-access-from-files --dom-automation --log-gpu-control-list-decisions --disable-backgrounding-occluded-windows --disable-gl-drawing-for-tests --override-use-software-gl-for-tests --force-color-profile=srgb --disable-compositor-ukm-for-tests --enable-features=TestFeatureForBrowserTest1 --disable-features=NetworkPrediction,SpeculativePreconnect,TestFeatureForBrowserTest2 --disable-gpu-process-for-dx12-vulkan-info-collection --flag-switches-begin --flag-switches-end --restore-last-session about:blank
[6032:1956:0812/035931.958:ERROR:service_manager_context.cc(270)] Attempting to run unsupported native service: C:\b\s\w\ir\out\Debug_x64\chrome_renderer.service.exe
[6032:1956:0812/035931.973:ERROR:service_manager_context.cc(270)] Attempting to run unsupported native service: C:\b\s\w\ir\out\Debug_x64\chrome_renderer.service.exe
[6032:6812:0812/035932.067:WARNING:gaia_auth_fetcher.cc(926)] Could not reach Google Accounts servers: errno -11
Starting connection to 127.0.0.1:58845
Handshake done for user@gmail.com/127.0.0.1:58845.chrome-sync
[6740:3116:0812/035932.973:ERROR:webthread_impl_for_utility_thread.cc(19)] NOT IMPLEMENTED
[6032:1956:0812/035933.161:WARNING:http_cache_transaction.cc(1273)] Unable to create cache entry
[Client A -> chromiumsync.py] GetUpdates NEW_CLIENT <experiments+nigori>@0
Creating permanent item: Experiments
Creating permanent item: Nigori
Returning encryption keys: ['8NVR47B1KOYJ3ZDN']
[Client A <- chromiumsync.py] 2 update(s)
[6032:5752:0812/035933.208:WARNING:sync_encryption_handler_impl.cc(970)] Nigori had empty encryption keybag.
[6032:5752:0812/035933.234:WARNING:sync_encryption_handler_impl.cc(970)] Nigori had empty encryption keybag.
[6032:6812:0812/035933.236:ERROR:account_tracker.cc(265)] OnOAuthError
[6032:6812:0812/035933.237:WARNING:account_tracker.cc(192)] Failed to get UserInfo for gaia_id_for_user@gmail.com
[6032:6812:0812/035933.239:ERROR:account_info_fetcher.cc(74)] OnOAuthError
[6032:6812:0812/035933.239:WARNING:account_fetcher_service.cc(322)] Failed to get UserInfo for gaia_id_for_user@gmail.com
[6032:6812:0812/035933.255:INFO:profile_sync_service.cc(2070)] ConfigureDataTypeManager not invoked because datatypes cannot be configured now
[6032:6812:0812/035933.256:INFO:profile_sync_service.cc(2070)] ConfigureDataTypeManager not invoked because datatypes cannot be configured now
[6032:5752:0812/035933.287:WARNING:sync_encryption_handler_impl.cc(346)] Ignoring new implicit passphrase. Keystore migration already performed.
[Client A -> chromiumsync.py] GetUpdates NEW_CLIENT <device_info+priority_preference>@0, <nigori>@2
Creating permanent item: Device Info
Creating permanent item: Priority Preferences
[Client A <- chromiumsync.py] 2 update(s)
Sending notification to user@gmail.com/127.0.0.1:58845.chrome-sync
[Client A -> chromiumsync.py] GetUpdates NEW_CLIENT <app+app_setting+autofill+autofill_profile+autofill_wallet+bookmark+dictionary+extension+extension_setting+favicon_image+favicon_tracking+history_delete_directive+password+preference+search_engine+session+theme+typed_url+wallet_metadata>@0, <nigori>@4
Creating permanent item: Apps
Creating permanent item: App Settings
Creating permanent item: Bookmarks
Creating permanent item: Bookmark Bar
Creating permanent item: Other Bookmarks
Creating permanent item: Autofill
Creating permanent item: Autofill Profiles
Creating permanent item: Autofill Wallet Items
Creating permanent item: Autofill Wallet Metadata
Creating permanent item: Extension Settings
Creating permanent item: Extensions
Creating permanent item: History Delete Directives
Creating permanent item: Favicon Images
Creating permanent item: Favicon Tracking
Creating permanent item: Passwords
Creating permanent item: Preferences
Creating permanent item: Search Engines
Creating permanent item: Sessions
Creating permanent item: Themes
Creating permanent item: Typed URLs
Creating permanent item: Dictionary
[Client A <- chromiumsync.py] 21 update(s)
Sending notification to user@gmail.com/127.0.0.1:58845.chrome-sync
[Client A -> chromiumsync.py] GetUpdates GU_TRIGGER <experiments>@2, <device_info+priority_preference>@4, <app+app_setting+autofill+autofill_profile+autofill_wallet+bookmark+dictionary+extension+extension_setting+favicon_image+favicon_tracking+history_delete_directive+nigori+password+preference+search_engine+session+theme+typed_url+wallet_metadata>@25
[Client A <- chromiumsync.py] 0 update(s)
[Client A -> chromiumsync.py] Commit 22 item(s)
Sending notification to user@gmail.com/127.0.0.1:58845.chrome-sync
[Client A -> chromiumsync.py] GetUpdates GU_TRIGGER <all except app_list+app_notification+arc_package+article+managed_user+managed_user_setting+managed_user_shared_setting+managed_user_whitelist+printer+reading_list+synced_notification+synced_notification_app_info+wifi_credential>@25
Returning encryption keys: ['8NVR47B1KOYJ3ZDN']
[Client A <- chromiumsync.py] 22 update(s)
[6032:1956:0812/035933.723:ERROR:service_manager_context.cc(270)] Attempting to run unsupported native service: C:\b\s\w\ir\out\Debug_x64\chrome_renderer.service.exe
[6032:1956:0812/035933.755:ERROR:service_manager_context.cc(270)] Attempting to run unsupported native service: C:\b\s\w\ir\out\Debug_x64\chrome_renderer.service.exe
[6032:1956:0812/035933.755:ERROR:service_manager_context.cc(270)] Attempting to run unsupported native service: C:\b\s\w\ir\out\Debug_x64\chrome_renderer.service.exe
[Client A -> chromiumsync.py] GetUpdates GU_TRIGGER <all except app_list+app_notification+arc_package+article+managed_user+managed_user_setting+managed_user_shared_setting+managed_user_whitelist+printer+reading_list+synced_notification+synced_notification_app_info+wifi_credential>@47
[Client A <- chromiumsync.py] 0 update(s)
[6032:1956:0812/035933.942:ERROR:service_manager_context.cc(270)] Attempting to run unsupported native service: C:\b\s\w\ir\out\Debug_x64\chrome_renderer.service.exe
../../chrome/browser/sync/test/integration/sync_test.cc(1110): error: Expected equality of these values:
  "Notifications disabled"
  base::UTF16ToASCII( browser()->tab_strip_model()->GetActiveWebContents()-> GetTitle())
    Which is: ""
Stack trace:
Backtrace:
	StackTraceGetter::CurrentStackTrace [0x00007FF794A2BBB0+80]
	testing::internal::UnitTestImpl::CurrentOsStackTraceExceptTop [0x00007FF794A4698A+90]
	testing::internal::AssertHelper::operator= [0x00007FF794A4648A+90]
	SyncTest::DisableNotificationsImpl [0x00007FF7975C561D+781]
	SyncTest::DisableNotifications [0x00007FF7975C56E3+19]
	base::circular_deque<syncer::EnumSet<enum syncer::ModelType,2,41> >::~circular_deque<syncer::EnumSet<enum syncer::ModelType,2,41> > [0x00007FF79485FDAE+206]
	std::_Vector_alloc<std::_Vec_base_types<std::unique_ptr<MigrationWatcher,std::default_delete<MigrationWatcher> >,std::allocator<std::unique_ptr<MigrationWatcher,std::default_delete<MigrationWatcher> > > > >::_Free_proxy [0x00007FF79485FC58+552]
	wmemcpy [0x00007FF79485F023+6947]
	content::BrowserTestBase::ProxyRunTestOnMainThreadLoop [0x00007FF79824A2AB+811]
	??$Invoke@P8BrowserTestBase@content@@EAAXXZPEAV12@$$V@?$FunctorTraits@P8BrowserTestBase@content@@EAAXXZX@internal@base@@SAXP8BrowserTestBase@content@@EAAXXZ$$QEAPEAV34@@Z [0x00007FF79824C8AA+26]
	base::internal::InvokeHelper<0,void>::MakeItSo<void (__cdecl content::BrowserTestBase::*const & __ptr64)(void) __ptr64,content::BrowserTestBase * __ptr64> [0x00007FF79824C824+52]
	base::internal::Invoker<base::internal::BindState<void (__cdecl content::BrowserTestBase::*)(void) __ptr64,base::internal::UnretainedWrapper<content::BrowserTestBase> >,void __cdecl(void)>::RunImpl<void (__cdecl content::BrowserTestBase::*const & __ptr64) [0x00007FF79824C7D8+88]
	base::internal::Invoker<base::internal::BindState<void (__cdecl content::BrowserTestBase::*)(void) __ptr64,base::internal::UnretainedWrapper<content::BrowserTestBase> >,void __cdecl(void)>::Run [0x00007FF79824C6EC+60]
	base::RepeatingCallback<void __cdecl(void)>::Run [0x00007FF794B96562+66]
	ChromeBrowserMainParts::PreMainMessageLoopRunImpl [0x00007FF798545CE4+6820]
	ChromeBrowserMainParts::PreMainMessageLoopRun [0x00007FF7985441A1+465]
	content::BrowserMainLoop::PreMainMessageLoopRun [0x00007FFE902D4423+355]
	??$Invoke@P8BrowserMainLoop@content@@EAAHXZPEAV12@$$V@?$FunctorTraits@P8BrowserMainLoop@content@@EAAHXZX@internal@base@@SAHP8BrowserMainLoop@content@@EAAHXZ$$QEAPEAV34@@Z [0x00007FFE902DE3CA+26]
	base::internal::InvokeHelper<0,int>::MakeItSo<int (__cdecl content::BrowserMainLoop::*const & __ptr64)(void) __ptr64,content::BrowserMainLoop * __ptr64> [0x00007FFE902DE344+52]
	base::internal::Invoker<base::internal::BindState<int (__cdecl content::BrowserMainLoop::*)(void) __ptr64,base::internal::UnretainedWrapper<content::BrowserMainLoop> >,int __cdecl(void)>::RunImpl<int (__cdecl content::BrowserMainLoop::*const & __ptr64)(vo [0x00007FFE902DE2E8+88]
	base::internal::Invoker<base::internal::BindState<int (__cdecl content::BrowserMainLoop::*)(void) __ptr64,base::internal::UnretainedWrapper<content::BrowserMainLoop> >,int __cdecl(void)>::Run [0x00007FFE902DE1BC+60]
	base::RepeatingCallback<int __cdecl(void)>::Run [0x00007FFE90D30142+66]
	content::StartupTaskRunner::RunAllTasksNow [0x00007FFE9170CBB1+161]
	content::BrowserMainLoop::CreateStartupTasks [0x00007FFE902D2351+1441]
	content::BrowserMainRunnerImpl::Initialize [0x00007FFE902E4558+1864]
	content::BrowserMain [0x00007FFE902CB9F2+194]
	content::RunBrowserProcessMain [0x00007FFE92FCDE08+168]
	content::ContentMainRunnerImpl::Run [0x00007FFE92FCF127+935]
	content::ContentServiceManagerMainDelegate::RunEmbedderProcess [0x00007FFE92FCB4C7+55]
	service_manager::Main [0x00007FFE9BEF5102+1762]
	content::ContentMain [0x00007FFE92FCDCCF+95]
	content::BrowserTestBase::SetUp [0x00007FF798249C3B+2875]
	InProcessBrowserTest::SetUp [0x00007FF7975E0F8E+1998]
	SyncTest::SetUp [0x00007FF7975BC336+710]