circa r535020

mash_browser_test failures:

[ RUN      ] ExtensionViewTests/ExtensionViewLoadApiTest.QueuedLoadAPILoadOtherExtension/0
[28915:28915:0207/100709.994983:ERROR:shell_delegate_mus.cc(71)] Not implemented reached in virtual void ash::ShellDelegateMus::PreInit()
[28915:28915:0207/100710.044372:ERROR:layer_tree_host_impl.cc(2651)] Forcing zero-copy tile initialization as worker context is missing
[28915:28915:0207/100710.054355:ERROR:wallpaper_controller.cc(1259)] User is ephemeral or guest! Fallback to default wallpaper.
[28730:28730:0207/100710.057978:WARNING:user_policy_manager_factory_chromeos.cc(184)] No policy loaded for known non-enterprise user
[28730:28730:0207/100710.066868:WARNING:user_session_manager.cc(1044)] Attempting to save user password for non enterprise user.
[28915:28915:0207/100710.166456:ERROR:shell_delegate_mus.cc(61)] Not implemented reached in virtual bool ash::ShellDelegateMus::CanShowWindowForUser(aura::Window *) const
[28730:28730:0207/100710.230291:ERROR:network_type_pattern.cc(134)] NetworkTypePattern: wifi: Can not match empty type.
[28730:28730:0207/100710.230563:ERROR:network_type_pattern.cc(134)] NetworkTypePattern: wifi: Can not match empty type.
[28730:28730:0207/100710.231560:ERROR:network_type_pattern.cc(134)] NetworkTypePattern: wifi: Can not match empty type.
[28730:28730:0207/100710.231628:ERROR:network_type_pattern.cc(134)] NetworkTypePattern: wifi: Can not match empty type.
GMOCK WARNING:
Uninteresting mock function call - returning directly.
    Function call: RegisterMediaRoutesObserver(0x39f4be33c420)
NOTE: You can safely ignore the above warning unless this call should not happen.  Do not suppress it by blindly adding an EXPECT_CALL() if you don't mean to enforce the call.  See https://github.com/google/googletest/blob/master/googlemock/docs/CookBook.md#knowing-when-to-expect for details.
GMOCK WARNING:
Uninteresting mock function call - taking default action specified at:
../../chrome/browser/apps/app_browsertest_util.cc:68:
    Function call: RegisterMediaSinksObserver(0x39f4be33c448)
          Returns: true
NOTE: You can safely ignore the above warning unless this call should not happen.  Do not suppress it by blindly adding an EXPECT_CALL() if you don't mean to enforce the call.  See https://github.com/google/googletest/blob/master/googlemock/docs/CookBook.md#knowing-when-to-expect for details.
[28730:28730:0207/100710.270963:ERROR:remote_text_input_client.cc(135)] Not implemented reached in virtual void RemoteTextInputClient::OnInputMethodChanged()
[28730:28730:0207/100710.270992:ERROR:remote_text_input_client.cc(92)] Not implemented reached in virtual bool RemoteTextInputClient::HasCompositionText() const
[28730:28730:0207/100710.270999:ERROR:remote_text_input_client.cc(98)] Not implemented reached in virtual bool RemoteTextInputClient::GetTextRange(gfx::Range *) const
[28730:28730:0207/100710.271004:ERROR:remote_text_input_client.cc(153)] Not implemented reached in virtual void RemoteTextInputClient::EnsureCaretNotInRect(const gfx::Rect &)
[28730:28730:0207/100710.325543:ERROR:layer_tree_host_impl.cc(2651)] Forcing zero-copy tile initialization as worker context is missing
[28730:28730:0207/100710.333521:ERROR:layer_tree_host_impl.cc(2651)] Forcing zero-copy tile initialization as worker context is missing
[1:10:0207/100710.341033:ERROR:layer_tree_host_impl.cc(2651)] Forcing zero-copy tile initialization as worker context is missing
[28730:28730:0207/100710.810575:ERROR:render_widget_host_view_aura.cc(1284)] Not implemented reached in virtual base::i18n::TextDirection content::RenderWidgetHostViewAura::GetTextDirection() const
[28730:28730:0207/100710.817837:ERROR:layer_tree_host_impl.cc(2651)] Forcing zero-copy tile initialization as worker context is missing
[1:10:0207/100710.824223:ERROR:layer_tree_host_impl.cc(2651)] Forcing zero-copy tile initialization as worker context is missing
[28730:28905:0207/100710.974288:ERROR:crash_handler_host_linux.cc(437)] Failed to write crash dump for pid 29160
Cannot upload crash dump: failed to open
Failed to save crash dump: failed to open
BrowserTestBase received signal: Terminated. Backtrace:
#0 0x000003ec0c9c base::debug::StackTrace::StackTrace()
#1 0x0000045122e2 content::(anonymous namespace)::DumpStackTraceSignalHandler()
#2 0x7fe7e4078cb0 <unknown>
#3 0x7fe7e4140693 epoll_wait
#4 0x000004e8673d epoll_dispatch
#5 0x000004e8421d event_base_loop
#6 0x000003ee4f14 base::MessagePumpLibevent::Run()
#7 0x000003ee2169 base::MessageLoop::Run()
#8 0x000003f0d409 base::RunLoop::Run()
#9 0x00000454a5e3 content::RunMessageLoop()
#10 0x000009052f6e ExtensionTestMessageListener::WaitUntilSatisfied()
#11 0x0000005ec5e0 ExtensionViewTest::TestHelper()
#12 0x0000005ecfc3 ExtensionViewLoadApiTest::TestLoadApiHelper()
#13 0x0000005ededb ExtensionViewLoadApiTest_QueuedLoadAPILoadOtherExtension_Test::RunTestOnMainThread()
#14 0x000004512035 content::BrowserTestBase::ProxyRunTestOnMainThreadLoop()
#15 0x000003ff47cc ChromeBrowserMainParts::PreMainMessageLoopRunImpl()
#16 0x000003ff356d ChromeBrowserMainParts::PreMainMessageLoopRun()
#17 0x000001995a38 chromeos::ChromeBrowserMainPartsChromeos::PreMainMessageLoopRun()
#18 0x000002749f01 content::BrowserMainLoop::PreMainMessageLoopRun()
#19 0x000002b89175 content::StartupTaskRunner::RunAllTasksNow()
#20 0x0000027484bd content::BrowserMainLoop::CreateStartupTasks()
#21 0x00000274c9d3 content::BrowserMainRunnerImpl::Initialize()
#22 0x000002746092 content::BrowserMain()
#23 0x000003e8da22 content::ContentMainRunnerImpl::Run()
#24 0x0000061854cb service_manager::Main()
#25 0x000003e8c004 content::ContentMain()
#26 0x000004511c9f content::BrowserTestBase::SetUp()
#27 0x000003fad24c InProcessBrowserTest::SetUp()
#28 0x000001d16951 testing::Test::Run()
#29 0x000001d17520 testing::TestInfo::Run()
#30 0x000001d17a07 testing::TestCase::Run()
#31 0x000001d1ef37 testing::internal::UnitTestImpl::RunAllTests()
#32 0x000001d1eb87 testing::UnitTest::Run()
#33 0x000003fc18a2 base::TestSuite::Run()
#34 0x000003eb4b59 ChromeTestSuiteRunner::RunTestSuite()
#35 0x000003eb4ad0 (anonymous namespace)::MusTestLauncherDelegate::RunTestSuite()
#36 0x000004546dcd content::LaunchTests()
#37 0x000003eb5024 LaunchChromeTests()
#38 0x000003eb4866 RunMashBrowserTests()
#39 0x000003eb4717 main