chromium : extensions load back trace

#2 0x55c01d36db9d extensions::ExtensionRegistry::AddEnabled()
#3 0x55c01d3696cf extensions::ExtensionRegistrar::AddExtension()
#4 0x55c020eda0f6 ExtensionService::AddExtension()
#5 0x55c020f7e344 extensions::InstalledLoader::Load()
#6 0x55c020f7f31b extensions::InstalledLoader::LoadAllExtensions()
#7 0x55c020ed12e5 ExtensionService::Init()
#8 0x55c020f10a82 extensions::ExtensionSystemImpl::Shared::Init()
#9 0x55c020f11462 extensions::ExtensionSystemImpl::InitForRegularProfile()
#10 0x55c01eb6419a ProfileManager::DoFinalInitForServices()
#11 0x55c01eb63fd3 ProfileManager::DoFinalInit()
#12 0x55c01eb65d73 ProfileManager::AddProfile()
#13 0x55c01eb576d2 ProfileManager::CreateAndInitializeProfile()
#14 0x55c01eb57227 ProfileManager::GetProfile()
#15 0x55c0222cb5f8 GetStartupProfile()
#16 0x55c01e6db67f (anonymous namespace)::CreatePrimaryProfile()
#17 0x55c01e6d9366 ChromeBrowserMainParts::PreMainMessageLoopRunImpl()
#18 0x55c01e6d85cc ChromeBrowserMainParts::PreMainMessageLoopRun()
#19 0x7fccb0fb41e4 content::BrowserMainLoop::PreMainMessageLoopRun()
#20 0x7fccafe9bcfd _ZN4base8internal13FunctorTraitsIMN7content14NetworkContext11DiskCheckerEFvvEvE6InvokeIPS4_JEEEvS6_OT_DpOT0_
#21 0x7fccafe9bc74 _ZN4base8internal12InvokeHelperILb0EvE8MakeItSoIMN7content14NetworkContextEFvvEJPS5_EEEvOT_DpOT0_
#22 0x7fccafe9bc25 _ZN4base8internal7InvokerINS0_9BindStateIMN7content14NetworkContext11DiskCheckerEFvvEJNS0_17UnretainedWrapperIS5_EEEEEFvvEE7RunImplIRKS7_RKNSt3__15tupleIJS9_EEEJLm0EEEEvOT_OT0_NSG_16integer_sequenceImJXspT1_EEEE
#23 0x7fccafea19dc _ZN4base8internal7InvokerINS0_9BindStateIMN7content14NetworkContext11DiskCheckerEFvvEJNS0_17UnretainedWrapperIS5_EEEEEFvvEE3RunEPNS0_13BindStateBaseE
#24 0x7fccafe5c50d _ZNKR4base17RepeatingCallbackIFvvEE3RunEv
#25 0x7fccb1c19edd content::StartupTaskRunner::RunAllTasksNow()
#26 0x7fccb0fafa67 content::BrowserMainLoop::CreateStartupTasks()
#27 0x7fccb0fbe60d content::BrowserMainRunnerImpl::Initialize()
#28 0x7fccb0fa8644 content::BrowserMain()
#29 0x7fccb2b769b8 content::RunNamedProcessTypeMain()
#30 0x7fccb2b795aa content::ContentMainRunnerImpl::Run()
#31 0x7fccb2b6fa6d content::ContentServiceManagerMainDelegate::RunEmbedderProcess()
#32 0x7fccb74b189d service_manager::Main()
#33 0x7fccb2b757ff content::ContentMain()
#34 0x55c01cebb23e ChromeMain
#35 0x55c01cebb152 main
#36 0x7fcc9de90f45 __libc_start_main