Tested in chrome # 57.0.2987.110 stable #57.0.2987.133 and Canary #59.0.3057.0 on Ubuntu 14.04 and not able to reproduce the issue.Please find the screen shots for your reference.
Steps followed:
1. Launch chrome and navigate settings.
2. Login with valid credentials >> Able to access the chrome.

@Reporter: Could you please let me know if i have missed anything and if possible, create new profile without extensions and apps. Re-check once and let us know the observations of the issue which would help us to triage the issue further.

Stack Trace:
------------
Thread 0 CRASHED [SIGSEGV @ 0x00000028 ] MAGIC SIGNATURE THREAD
Stack Quality81%Show frame trust levels
0x0000556b4ff76d0e	(chrome -./out/Release/../../components/web_modal/web_contents_modal_dialog_manager.h:30 )	constrained_window::ShowWebModalDialogViews(views::WidgetDelegate*, content::WebContents*)
0x0000556b4e06f943	(chrome -./out/Release/../../chrome/browser/ui/views/login_handler_views.cc:121 )	LoginHandlerViews::BuildViewImpl(std::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > const&, std::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > const&, LoginHandler::LoginModelData*)
0x0000556b4de7a9ad	(chrome -./out/Release/../../chrome/browser/ui/login/login_handler.cc:156 )	LoginHandler::ShowLoginPrompt(GURL const&, net::AuthChallengeInfo*, LoginHandler*)
0x0000556b4bc26ae2	(chrome -./out/Release/../../content/browser/frame_host/interstitial_page_impl.cc:858 )	content::InterstitialPageImpl::OnDomOperationResponse(content::RenderFrameHostImpl*, std::string const&)
0x0000556b4bc26bc5	(chrome -./out/Release/../../ipc/ipc_message_templates.h:40 )	bool IPC::MessageT<FrameHostMsg_DomOperationResponse_Meta, std::tuple<std::string>, void>::Dispatch<content::InterstitialPageImpl, content::InterstitialPageImpl, content::RenderFrameHostImpl, void (content::InterstitialPageImpl::*)(content::RenderFrameHostImpl*, std::string const&)>(IPC::Message const*, content::InterstitialPageImpl*, content::InterstitialPageImpl*, content::RenderFrameHostImpl*, void (content::InterstitialPageImpl::*)(content::RenderFrameHostImpl*, std::string const&))
0x0000556b4bc25f74	(chrome -./out/Release/../../content/browser/frame_host/interstitial_page_impl.cc:363 )	content::InterstitialPageImpl::OnMessageReceived(content::RenderFrameHostImpl*, IPC::Message const&)
0x0000556b4bc3e750	(chrome -./out/Release/../../content/browser/frame_host/render_frame_host_impl.cc:679 )	content::RenderFrameHostImpl::OnMessageReceived(IPC::Message const&)
0x0000556b4cfb7639	(chrome -./out/Release/../../ipc/ipc_channel_proxy.cc:329 )	IPC::ChannelProxy::Context::OnDispatchMessage(IPC::Message const&)
0x0000556b4c69dffd	(chrome -./out/Release/../../base/callback.h:68 )	base::debug::TaskAnnotator::RunTask(char const*, base::PendingTask*)
0x0000556b4c634eaf	(chrome -./out/Release/../../base/message_loop/message_loop.cc:421 )	base::MessageLoop::RunTask(base::PendingTask*)
0x0000556b4c6349a4	(chrome -./out/Release/../../base/message_loop/message_loop.cc:430 )	base::MessageLoop::DoWork()
0x0000556b4c6366b8	(chrome -./out/Release/../../base/message_loop/message_pump_glib.cc:267 )	base::(anonymous namespace)::WorkSourceDispatch(_GSource*, int (*)(void*), void*)
0x00007ff90e10de03	(libglib-2.0.so.0.4002.0 + 0x00048e03 )	
0x00007ff90e11cb3f	(libglib-2.0.so.0.4002.0 + 0x00057b3f )	
0x00007ff90e10e047	(libglib-2.0.so.0.4002.0 + 0x00049047 )	
0x00007ff90e10e0eb	(libglib-2.0.so.0.4002.0 + 0x000490eb )	
0x0000556b4c636915	(chrome -./out/Release/../../base/message_loop/message_pump_glib.cc:309 )	base::MessagePumpGlib::Run(base::MessagePump::Delegate*)
0x0000556b4c652f4f	(chrome -./out/Release/../../base/run_loop.cc:37 )	base::RunLoop::Run()
0x0000556b4c51c9e5	(chrome -./out/Release/../../chrome/browser/chrome_browser_main.cc:1977 )	ChromeBrowserMainParts::MainMessageLoopRun(int*)
0x0000556b4bb65c47	(chrome -./out/Release/../../content/browser/browser_main_loop.cc:1182 )	content::BrowserMainLoop::RunMainMessageLoopParts()
0x0000556b4bbac03c	(chrome -./out/Release/../../content/browser/browser_main_runner.cc:141 )	content::BrowserMainRunnerImpl::Run()
0x0000556b4bbac3b8	(chrome -./out/Release/../../content/browser/browser_main.cc:46 )	content::BrowserMain(content::MainFunctionParams const&)
0x0000556b4c2b248b	(chrome -./out/Release/../../content/app/content_main_runner.cc:793 )	content::ContentMainRunnerImpl::Run()
0x0000556b4c2b0f4d	(chrome -./out/Release/../../content/app/content_main.cc:20 )	content::ContentMain(content::ContentMainParams const&)
0x0000556b4af19d40	(chrome -./out/Release/../../chrome/app/chrome_main.cc:112 )	ChromeMain
0x00007ff908bf7f44	(libc-2.19.so -libc-start.c:287 )	__libc_start_main
0x0000556b4af19ba0	(chrome + 0x00b45ba0 )	_start

Thanks in Advance.

 Issue 710846  has been merged into this issue.

Issue 707705 has been merged into this issue.

Issue 707929 has been merged into this issue.

Issue 710860 has been merged into this issue.

cc'ing the Chrome Signin team. Just to make sure I understand: is this just a crash that occurred while trying to sign into Chrome after clicking the button in Chrome settings?

That is my rough understanding.

Users experienced this crash on the following builds:

Win Canary 60.0.3072.0 -  0.28 CPM, 6 reports, 4 clients (signature constrained_window::ShowWebModalDialogViews)

If this update was incorrect, please add "Fracas-Wrong" label to prevent future updates.

- Go/Fracas

Users experienced this crash on the following builds:

Linux Beta 58.0.3029.81 -  1.12 CPM, 5 reports, 4 clients (signature constrained_window::ShowWebModalDialogViews)

If this update was incorrect, please add "Fracas-Wrong" label to prevent future updates.

- Go/Fracas

Users experienced this crash on the following builds:

Win Beta 59.0.3071.29 -  0.07 CPM, 7 reports, 7 clients (signature constrained_window::ShowWebModalDialogViews)

If this update was incorrect, please add "Fracas-Wrong" label to prevent future updates.

- Go/Fracas

Issue 717445 has been merged into this issue.

Jerome, you're on-call triager. Can you please help triage this issue?

i can't reproduce this crash. I tried on linux and macos with top of tree. I need to get to checkout the source of this version to try.

This is a duplicate of crbug.com/629529

Issue 754933 has been merged into this issue.