UserAgent: Mozilla/5.0 (X11; Linux x86_64; rv:47.0) Gecko/20100101 Firefox/47.0

Steps to reproduce the problem:
start chrome or chromium

What is the expected behavior?
browser launches

What went wrong?
browser crashed

Crashed report ID: 

How much crashed? Whole browser

Is it a problem with a plugin? No 

Did this work before? Yes last week

Chrome version: 52.0.2743.82  Channel: stable
OS Version: Gentoo
Flash Version: Shockwave Flash 11.2 r202

Using a different data dir (--user-data-dir) doesn't help.

This crash only happens on my regular user account. Creating a fresh user account and starting chrome from there does not produce the crash.

--------------------------------------------------

piotrek@gentoo ~ $ google-chrome-stable 
--2016-07-25 12:33:04--  https://clients2.google.com/cr/report
Resolving clients2.google.com... 2a00:1450:400d:803::200e, 216.58.214.238
Connecting to clients2.google.com|2a00:1450:400d:803::200e|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [text/html]
Saving to: '/dev/fd/3'

     0K
  Crash dump id:   c6c7878e00000000 
                                                   2.11M=0s

Aborted (core dumped)
piotrek@gentoo ~ $ chromium
[20654:20654:0725/123307:FATAL:material_design_controller.cc(69)] Check failed: is_mode_initialized_. 
#0 0x55f33163664e <unknown>
#1 0x55f33164d90e <unknown>
#2 0x55f331b11997 <unknown>
#3 0x55f331b119c9 <unknown>
#4 0x55f334823fcf <unknown>
#5 0x7f80ff1bef55 g_closure_invoke
#6 0x7f80ff1d1439 <unknown>
#7 0x7f80ff1db404 g_signal_emit_valist
#8 0x7f80ff1db7e7 g_signal_emit
#9 0x7f80ff1c3594 <unknown>
#10 0x7f80ff1c617d g_object_notify
#11 0x7f80f73aad71 <unknown>
#12 0x7f80f73ad96e gtk_settings_set_string_property
#13 0x7f80e9eb8215 Oxygen::QtSettings::loadKdeIcons()
#14 0x7f80e9eba18f Oxygen::QtSettings::initialize()
#15 0x7f80e9ed75e3 Oxygen::Style::initialize()
#16 0x7f80e9f02f78 Oxygen::StyleWrapper::instanceInit()
#17 0x7f80ff1e4a49 g_type_create_instance
#18 0x7f80ff1c463d <unknown>
#19 0x7f80ff1c65e0 g_object_newv
#20 0x7f80ff1c6eec g_object_new
#21 0x7f80e9ebe92a Oxygen::RCStyle::createStyle()
#22 0x7f80f738a3b1 <unknown>
#23 0x7f80f738e2b6 gtk_rc_get_style
#24 0x7f80f7460d10 <unknown>
#25 0x7f80f7460f12 gtk_widget_realize
#26 0x55f3348250a8 <unknown>
#27 0x55f334825325 <unknown>
#28 0x55f3348234eb <unknown>
#29 0x55f334823f4d <unknown>
#30 0x55f33140ac6d <unknown>
#31 0x55f334179af2 <unknown>
#32 0x55f333f49ffa <unknown>
#33 0x55f333f49973 <unknown>
#34 0x55f33160632d <unknown>
#35 0x55f3316055c1 <unknown>
#36 0x55f3311b465a ChromeMain
#37 0x7f80f60ad720 __libc_start_main
#38 0x55f3311b4509 _start

Aborted (core dumped)
piotrek@gentoo ~ $

---------------------------------------

chromium crash gdb backtrace:

#0  0x00007f54179cd1b8 in raise () from /lib64/libc.so.6
#1  0x00007f54179ce60a in abort () from /lib64/libc.so.6
#2  0x00005584a22132b5 in base::debug::BreakDebugger() ()
#3  0x00005584a222aa45 in logging::LogMessage::~LogMessage() ()
#4  0x00005584a26ee997 in ui::MaterialDesignController::GetMode() ()
#5  0x00005584a26ee9c9 in ui::MaterialDesignController::IsModeMaterial() ()
#6  0x00005584a5400fcf in libgtk2ui::Gtk2UI::ResetStyle() ()
#7  0x00007f5420acbf55 in g_closure_invoke (closure=0x78f0ea337f0, return_value=return_value@entry=0x0, n_param_values=2, param_values=param_values@entry=0x7ffcb535e1e0, invocation_hint=invocation_hint@entry=0x7ffcb535e150)
    at /usr/src/debug/dev-libs/glib-2.48.1/glib-2.48.1/gobject/gclosure.c:804
#8  0x00007f5420ade439 in signal_emit_unlocked_R (node=node@entry=0x78f0ea06de0, detail=detail@entry=104, instance=instance@entry=0x78f0ea3ec80, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7ffcb535e1e0)
    at /usr/src/debug/dev-libs/glib-2.48.1/glib-2.48.1/gobject/gsignal.c:3699
#9  0x00007f5420ae8404 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffcb535e3a0) at /usr/src/debug/dev-libs/glib-2.48.1/glib-2.48.1/gobject/gsignal.c:3385
#10 0x00007f5420ae87e7 in g_signal_emit (instance=instance@entry=0x78f0ea3ec80, signal_id=<optimized out>, detail=<optimized out>) at /usr/src/debug/dev-libs/glib-2.48.1/glib-2.48.1/gobject/gsignal.c:3441
#11 0x00007f5420ad0594 in g_object_dispatch_properties_changed (object=0x78f0ea3ec80, n_pspecs=<optimized out>, pspecs=<optimized out>) at /usr/src/debug/dev-libs/glib-2.48.1/glib-2.48.1/gobject/gobject.c:1062
#12 0x00007f5420ad317d in g_object_notify_by_spec_internal (pspec=0x78f0e9fd170, object=0x78f0ea3ec80) at /usr/src/debug/dev-libs/glib-2.48.1/glib-2.48.1/gobject/gobject.c:1155
#13 g_object_notify (object=object@entry=0x78f0ea3ec80, property_name=<optimized out>) at /usr/src/debug/dev-libs/glib-2.48.1/glib-2.48.1/gobject/gobject.c:1203
#14 0x00007f5418cb7d71 in apply_queued_setting (data=0x78f0ea3ec80, pspec=0x78f0e9fd170, qvalue=0x78f0ea3ca40) at /usr/src/debug/x11-libs/gtk+-2.24.30/gtk+-2.24.30/gtk/gtksettings.c:1519
#15 0x00007f5418cba96e in IA__gtk_settings_set_string_property (settings=0x78f0ea3ec80, name=0x7f540b830062 "gtk-icon-theme-name", v_string=0x78f0ea844d0 "breeze", origin=<optimized out>) at /usr/src/debug/x11-libs/gtk+-2.24.30/gtk+-2.24.30/gtk/gtksettings.c:1757
#16 0x00007f540b7c5215 in Oxygen::QtSettings::loadKdeIcons() () from /usr/lib64/gtk-2.0/2.10.0/engines/liboxygen-gtk.so
#17 0x00007f540b7c718f in Oxygen::QtSettings::initialize(unsigned int) () from /usr/lib64/gtk-2.0/2.10.0/engines/liboxygen-gtk.so
#18 0x00007f540b7e45e3 in Oxygen::Style::initialize(unsigned int) () from /usr/lib64/gtk-2.0/2.10.0/engines/liboxygen-gtk.so
#19 0x00007f540b80ff78 in Oxygen::StyleWrapper::instanceInit(OxygenStyle*) () from /usr/lib64/gtk-2.0/2.10.0/engines/liboxygen-gtk.so
#20 0x00007f5420af1a49 in g_type_create_instance (type=<optimized out>) at /usr/src/debug/dev-libs/glib-2.48.1/glib-2.48.1/gobject/gtype.c:1875
#21 0x00007f5420ad163d in g_object_new_internal (class=0x78f0eb1ee00, params=params@entry=0x0, n_params=n_params@entry=0) at /usr/src/debug/dev-libs/glib-2.48.1/glib-2.48.1/gobject/gobject.c:1781
#22 0x00007f5420ad35e0 in g_object_newv (object_type=object_type@entry=8311007025456, n_parameters=n_parameters@entry=0, parameters=parameters@entry=0x0) at /usr/src/debug/dev-libs/glib-2.48.1/glib-2.48.1/gobject/gobject.c:1928
#23 0x00007f5420ad3eec in g_object_new (object_type=8311007025456, first_property_name=0x0) at /usr/src/debug/dev-libs/glib-2.48.1/glib-2.48.1/gobject/gobject.c:1621
#24 0x00007f540b7cb92a in Oxygen::RCStyle::createStyle(_GtkRcStyle*) () from /usr/lib64/gtk-2.0/2.10.0/engines/liboxygen-gtk.so
#25 0x00007f5418c973b1 in gtk_rc_style_to_style (context=0x78f0e9f17e0, rc_style=0x78f0ead21c0) at /usr/src/debug/x11-libs/gtk+-2.24.30/gtk+-2.24.30/gtk/gtkrc.c:2393
#26 gtk_rc_init_style (context=0x78f0e9f17e0, rc_styles=0x78f0ead0970) at /usr/src/debug/x11-libs/gtk+-2.24.30/gtk+-2.24.30/gtk/gtkrc.c:2476
#27 0x00007f5418c9b2b6 in IA__gtk_rc_get_style (widget=widget@entry=0x78f0eb2d030) at /usr/src/debug/x11-libs/gtk+-2.24.30/gtk+-2.24.30/gtk/gtkrc.c:2030
#28 0x00007f5418d6dd10 in gtk_widget_reset_rc_style (widget=0x78f0eb2d030) at /usr/src/debug/x11-libs/gtk+-2.24.30/gtk+-2.24.30/gtk/gtkwidget.c:6601
#29 0x00007f5418d6df12 in IA__gtk_widget_realize (widget=0x78f0eb2d030) at /usr/src/debug/x11-libs/gtk+-2.24.30/gtk+-2.24.30/gtk/gtkwidget.c:3552
#30 0x00005584a54020a8 in libgtk2ui::NativeThemeGtk2::GetWindow() const ()
#31 0x00005584a5402325 in libgtk2ui::NativeThemeGtk2::GetSystemColor(ui::NativeTheme::ColorId) const ()
#32 0x00005584a54004eb in libgtk2ui::Gtk2UI::LoadGtkValues() ()
#33 0x00005584a5400f4d in libgtk2ui::Gtk2UI::Initialize() ()
#34 0x00005584a1fe7c6d in ChromeBrowserMainParts::ToolkitInitialized() ()
#35 0x00005584a4d56af2 in content::BrowserMainLoop::InitializeToolkit() ()
#36 0x00005584a4b26ffa in content::BrowserMainRunnerImpl::Initialize(content::MainFunctionParams const&) ()
#37 0x00005584a4b26973 in content::BrowserMain(content::MainFunctionParams const&) ()
#38 0x00005584a21e332d in content::ContentMainRunnerImpl::Run() ()
#39 0x00005584a21e25c1 in content::ContentMain(content::ContentMainParams const&) ()
#40 0x00005584a1d9165a in ChromeMain ()
#41 0x00007f54179ba720 in __libc_start_main () from /lib64/libc.so.6
#42 0x00005584a1d91509 in _start ()

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Gentoo bugzilla link: https://bugs.gentoo.org/show_bug.cgi?id=589330