3 SpokenFeedbackTest are failing when SingleProcessMash and LSAN are enabled. See https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/Linux%20Chromium%20OS%20ASan%20LSan%20Tests%20%281%29/29635

TestAsNormalAndGuestUser/SpokenFeedbackTest.FocusShelf/0
TestAsNormalAndGuestUser/SpokenFeedbackTest.FocusShelf/1
LoggedInSpokenFeedbackTest.KeyboardShortcutViewer

are failing.

The typical error message says:

=================================================================
==10531==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 56 byte(s) in 1 object(s) allocated from:
    #0 0xb46962 in operator new(unsigned long) /b/swarming/w/ir/kitchen-workdir/src/third_party/llvm/compiler-rt/lib/asan/asan_new_delete.cc:106:3
    #1 0x1683c56e in ui::AXTreeSerializer::SerializeChangedNodes(views::AXAuraObjWrapper*, ui::AXTreeUpdateBase*) ui/accessibility/ax_tree_serializer.h:598:35
    #2 0x1683c792 in ui::AXTreeSerializer::SerializeChangedNodes(views::AXAuraObjWrapper*, ui::AXTreeUpdateBase*) ui/accessibility/ax_tree_serializer.h:604:12
    #3 0x1683c792 in ui::AXTreeSerializer::SerializeChangedNodes(views::AXAuraObjWrapper*, ui::AXTreeUpdateBase*) ui/accessibility/ax_tree_serializer.h:604:12
    #4 0x1683766e in ui::AXTreeSerializer::SerializeChanges(views::AXAuraObjWrapper*, ui::AXTreeUpdateBase*) ui/accessibility/ax_tree_serializer.h:422:8
    #5 0x195b0418 in AutomationManagerAura::SendEvent(views::AXAuraObjWrapper*, ax::mojom::Event) chrome/browser/ui/aura/accessibility/automation_manager_aura.cc:177:34
    #6 0x195b3676 in Invoke, int, ax::mojom::Event> base/bind_internal.h:516:12
    #7 0x195b3676 in MakeItSo, int, ax::mojom::Event> base/bind_internal.h:636
    #8 0x195b3676 in RunImpl, int, ax::mojom::Event>, 0, 1, 2> base/bind_internal.h:689
    #9 0x195b3676 in base::internal::Invoker, int, ax::mojom::Event>, void ()>::RunOnce(base::internal::BindStateBase*) base/bind_internal.h:658
    #10 0x10e9f76f in Run base/callback.h:99:12
    #11 0x10e9f76f in base::debug::TaskAnnotator::RunTask(char const*, base::PendingTask*) base/debug/task_annotator.cc:99
    #12 0x10bfc034 in base::MessageLoop::RunTask(base::PendingTask*) base/message_loop/message_loop.cc:434:46
    #13 0x10bfcbdf in DeferOrRunPendingTask base/message_loop/message_loop.cc:445:5
    #14 0x10bfcbdf in base::MessageLoop::DoWork() base/message_loop/message_loop.cc:517
    #15 0x10e8b840 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) base/message_loop/message_pump_libevent.cc:210:31
    #16 0x10bfaec4 in base::MessageLoop::Run(bool) base/message_loop/message_loop.cc:386:12
    #17 0x10c9ae2d in base::RunLoop::Run() base/run_loop.cc:102:14
    #18 0xdd314be in RunUntilBrowserProcessQuits chrome/test/base/in_process_browser_test.cc:374:25
    #19 0xdd314be in InProcessBrowserTest::QuitBrowsers() chrome/test/base/in_process_browser_test.cc:615
    #20 0xdd31077 in InProcessBrowserTest::PostRunTestOnMainThread() chrome/test/base/in_process_browser_test.cc:590:3
    #21 0xf1684a2 in content::BrowserTestBase::ProxyRunTestOnMainThreadLoop() content/public/test/browser_test_base.cc:453:3
    #22 0xdd5f7ff in Run base/callback.h:129:12
    #23 0xdd5f7ff in ChromeBrowserMainParts::PreMainMessageLoopRunImpl() chrome/browser/chrome_browser_main.cc:1963
    #24 0xdd5c9cb in ChromeBrowserMainParts::PreMainMessageLoopRun() chrome/browser/chrome_browser_main.cc:1347:18
    #25 0x915f5fc in chromeos::ChromeBrowserMainPartsChromeos::PreMainMessageLoopRun() chrome/browser/chromeos/chrome_browser_main_chromeos.cc:667:32
    #26 0x57dbf6d in content::BrowserMainLoop::PreMainMessageLoopRun() content/browser/browser_main_loop.cc:977:13
    #27 0x6b3659b in Run base/callback.h:129:12
    #28 0x6b3659b in content::StartupTaskRunner::RunAllTasksNow() content/browser/startup_task_runner.cc:41
    #29 0x57d8b96 in content::BrowserMainLoop::CreateStartupTasks() content/browser/browser_main_loop.cc:911:25
    #30 0x57e3183 in content::BrowserMainRunnerImpl::Initialize(content::MainFunctionParams const&) content/browser/browser_main_runner_impl.cc:144:15
    #31 0x57d2a1f in content::BrowserMain(content::MainFunctionParams const&) content/browser/browser_main.cc:43:32
    #32 0xcf82725 in RunBrowserProcessMain content/app/content_main_runner_impl.cc:541:10
    #33 0xcf82725 in content::ContentMainRunnerImpl::Run(bool) content/app/content_main_runner_impl.cc:914
    #34 0x152a9d13 in service_manager::Main(service_manager::MainParams const&) services/service_manager/embedder/main.cc:472:29
    #35 0xcf7d295 in content::ContentMain(content::ContentMainParams const&) content/app/content_main.cc:19:10
    #36 0xf166b91 in content::BrowserTestBase::SetUp() content/public/test/browser_test_base.cc:340:3
    #37 0xdd2c9ad in InProcessBrowserTest::SetUp() chrome/test/base/in_process_browser_test.cc:283:20
    #38 0x17b7bb2 in HandleExceptionsInMethodIfSupported third_party/googletest/src/googletest/src/gtest.cc
    #39 0x17b7bb2 in testing::Test::Run() third_party/googletest/src/googletest/src/gtest.cc:2518

Indirect leak of 8 byte(s) in 1 object(s) allocated from:
    #0 0xb46962 in operator new(unsigned long) /b/swarming/w/ir/kitchen-workdir/src/third_party/llvm/compiler-rt/lib/asan/asan_new_delete.cc:106:3
    #1 0x550f835 in __libcpp_allocate buildtools/third_party/libc++/trunk/include/new:254:10
    #2 0x550f835 in allocate buildtools/third_party/libc++/trunk/include/memory:1800
    #3 0x550f835 in allocate buildtools/third_party/libc++/trunk/include/memory:1549
    #4 0x550f835 in __split_buffer buildtools/third_party/libc++/trunk/include/__split_buffer:311
    #5 0x550f835 in std::__1::vector >::reserve(unsigned long) buildtools/third_party/libc++/trunk/include/vector:1576
    #6 0x1683bfe2 in ui::AXTreeSerializer::SerializeChangedNodes(views::AXAuraObjWrapper*, ui::AXTreeUpdateBase*) ui/accessibility/ax_tree_serializer.h:573:25
    #7 0x1683c792 in ui::AXTreeSerializer::SerializeChangedNodes(views::AXAuraObjWrapper*, ui::AXTreeUpdateBase*) ui/accessibility/ax_tree_serializer.h:604:12
    #8 0x1683c792 in ui::AXTreeSerializer::SerializeChangedNodes(views::AXAuraObjWrapper*, ui::AXTreeUpdateBase*) ui/accessibility/ax_tree_serializer.h:604:12
    #9 0x1683c792 in ui::AXTreeSerializer::SerializeChangedNodes(views::AXAuraObjWrapper*, ui::AXTreeUpdateBase*) ui/accessibility/ax_tree_serializer.h:604:12
    #10 0x1683766e in ui::AXTreeSerializer::SerializeChanges(views::AXAuraObjWrapper*, ui::AXTreeUpdateBase*) ui/accessibility/ax_tree_serializer.h:422:8
    #11 0x195b0418 in AutomationManagerAura::SendEvent(views::AXAuraObjWrapper*, ax::mojom::Event) chrome/browser/ui/aura/accessibility/automation_manager_aura.cc:177:34
    #12 0x195b3676 in Invoke, int, ax::mojom::Event> base/bind_internal.h:516:12
    #13 0x195b3676 in MakeItSo, int, ax::mojom::Event> base/bind_internal.h:636
    #14 0x195b3676 in RunImpl, int, ax::mojom::Event>, 0, 1, 2> base/bind_internal.h:689
    #15 0x195b3676 in base::internal::Invoker, int, ax::mojom::Event>, void ()>::RunOnce(base::internal::BindStateBase*) base/bind_internal.h:658
    #16 0x10e9f76f in Run base/callback.h:99:12
    #17 0x10e9f76f in base::debug::TaskAnnotator::RunTask(char const*, base::PendingTask*) base/debug/task_annotator.cc:99
    #18 0x10bfc034 in base::MessageLoop::RunTask(base::PendingTask*) base/message_loop/message_loop.cc:434:46
    #19 0x10bfcbdf in DeferOrRunPendingTask base/message_loop/message_loop.cc:445:5
    #20 0x10bfcbdf in base::MessageLoop::DoWork() base/message_loop/message_loop.cc:517
    #21 0x10e8b840 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) base/message_loop/message_pump_libevent.cc:210:31
    #22 0x10bfaec4 in base::MessageLoop::Run(bool) base/message_loop/message_loop.cc:386:12
    #23 0x10c9ae2d in base::RunLoop::Run() base/run_loop.cc:102:14
    #24 0xdd314be in RunUntilBrowserProcessQuits chrome/test/base/in_process_browser_test.cc:374:25
    #25 0xdd314be in InProcessBrowserTest::QuitBrowsers() chrome/test/base/in_process_browser_test.cc:615
    #26 0xdd31077 in InProcessBrowserTest::PostRunTestOnMainThread() chrome/test/base/in_process_browser_test.cc:590:3
    #27 0xf1684a2 in content::BrowserTestBase::ProxyRunTestOnMainThreadLoop() content/public/test/browser_test_base.cc:453:3
    #28 0xdd5f7ff in Run base/callback.h:129:12
    #29 0xdd5f7ff in ChromeBrowserMainParts::PreMainMessageLoopRunImpl() chrome/browser/chrome_browser_main.cc:1963
    #30 0xdd5c9cb in ChromeBrowserMainParts::PreMainMessageLoopRun() chrome/browser/chrome_browser_main.cc:1347:18
    #31 0x915f5fc in chromeos::ChromeBrowserMainPartsChromeos::PreMainMessageLoopRun() chrome/browser/chromeos/chrome_browser_main_chromeos.cc:667:32
    #32 0x57dbf6d in content::BrowserMainLoop::PreMainMessageLoopRun() content/browser/browser_main_loop.cc:977:13
    #33 0x6b3659b in Run base/callback.h:129:12
    #34 0x6b3659b in content::StartupTaskRunner::RunAllTasksNow() content/browser/startup_task_runner.cc:41
    #35 0x57d8b96 in content::BrowserMainLoop::CreateStartupTasks() content/browser/browser_main_loop.cc:911:25
    #36 0x57e3183 in content::BrowserMainRunnerImpl::Initialize(content::MainFunctionParams const&) content/browser/browser_main_runner_impl.cc:144:15
    #37 0x57d2a1f in content::BrowserMain(content::MainFunctionParams const&) content/browser/browser_main.cc:43:32
    #38 0xcf82725 in RunBrowserProcessMain content/app/content_main_runner_impl.cc:541:10
    #39 0xcf82725 in content::ContentMainRunnerImpl::Run(bool) content/app/content_main_runner_impl.cc:914
    #40 0x152a9d13 in service_manager::Main(service_manager::MainParams const&) services/service_manager/embedder/main.cc:472:29
    #41 0xcf7d295 in content::ContentMain(content::ContentMainParams const&) content/app/content_main.cc:19:10
    #42 0xf166b91 in content::BrowserTestBase::SetUp() content/public/test/browser_test_base.cc:340:3

SUMMARY: AddressSanitizer: 64 byte(s) leaked in 2 allocation(s).