crash log for renderer (pid <unknown>):
STDOUT: layer at (0,0) size 480x360
STDOUT:   LayoutView at (0,0) size 480x360
STDOUT: layer at (0,0) size 480x360
STDOUT:   LayoutSVGRoot {svg} at (0,0) size 480x360
STDOUT:     LayoutSVGHiddenContainer {defs} at (0,0) size 0x0
STDOUT:     LayoutSVGContainer {g} at (160,140) size 160x80
STDOUT:       LayoutSVGContainer {g} at (-60,-20) size 160x80 [transform={m=((1.00,0.00)(0.00,1.00)) t=(220.00,160.00)}]
STDOUT:         LayoutSVGContainer {g} at (-60,-20) size 160x80
STDOUT:           LayoutSVGEllipse {circle} at (-40,-40) size 80x80 [transform={m=((2.00,0.00)(0.00,1.00)) t=(20.00,20.00)}] [fill={[type=SOLID] [color=#FF0000]}] [cx=0.00] [cy=0.00] [r=40.00]
STDOUT:         LayoutSVGContainer {g} at (-40,-40) size 80x80 [transform={m=((2.00,0.00)(0.00,1.00)) t=(20.00,20.00)}]
STDOUT:           LayoutSVGEllipse {circle} at (-40,-40) size 80x80 [fill={[type=SOLID] [color=#00FF00]}] [cx=0.00] [cy=0.00] [r=40.00]
STDOUT:     LayoutSVGContainer {g} at (10,311) size 231x36
STDOUT:       LayoutSVGText {text} at (10,311) size 231x36 contains 1 chunk(s)
STDOUT:         LayoutSVGInlineText {#text} at (10,311) size 231x36
STDOUT:           chunk 1 text run 1 at (10.00,340.00) startOffset 0 endOffset 16 width 231.00: "$Revision: 1.7 $"
STDOUT:     LayoutSVGRect {rect} at (1,1) size 478x358 [stroke={[type=SOLID] [color=#000000]}] [x=1.00] [y=1.00] [width=478.00] [height=358.00]
STDERR: [1:1:0329/151413.561081:3499692816:FATAL:CanvasSurfaceLayerBridge.cpp(47)] Check failed: m_bridge. 
STDERR: #0 0x000001acfd67 base::debug::StackTrace::StackTrace()
STDERR: #1 0x000001ae73fb logging::LogMessage::~LogMessage()
STDERR: #2 0x000004bc1076 blink::(anonymous namespace)::OffscreenCanvasSurfaceReferenceFactory::SatisfySequence()
STDERR: #3 0x0000015ba13a _ZN4base8internal7InvokerINS0_9BindStateIMN7content18IndexedDBCallbacksEFvRKNS3_22IndexedDBDatabaseErrorEEJ13scoped_refptrIS4_ES5_EEEFvvEE3RunEPNS0_13BindStateBaseE
STDERR: #4 0x000000525cc0 _ZNO4base8CallbackIFvvELNS_8internal8CopyModeE1ELNS2_10RepeatModeE1EE3RunEv
STDERR: #5 0x000001b70fea base::debug::TaskAnnotator::RunTask()
STDERR: #6 0x000002b12fa0 blink::scheduler::TaskQueueManager::ProcessTaskFromWorkQueue()
STDERR: #7 0x000002b10730 blink::scheduler::TaskQueueManager::DoWork()
STDERR: #8 0x0000013f2ab7 _ZN4base8internal7InvokerINS0_9BindStateIMN7content17AppCacheUpdateJobEFvbEJNS_7WeakPtrIS4_EEbEEEFvvEE3RunEPNS0_13BindStateBaseE
STDERR: #9 0x000000525cc0 _ZNO4base8CallbackIFvvELNS_8internal8CopyModeE1ELNS2_10RepeatModeE1EE3RunEv
STDERR: #10 0x000001b70fea base::debug::TaskAnnotator::RunTask()
STDERR: #11 0x000001aee18d base::MessageLoop::RunTask()
STDERR: #12 0x000001aee438 base::MessageLoop::DeferOrRunPendingTask()
STDERR: #13 0x000001aee846 base::MessageLoop::DoWork()
STDERR: #14 0x000001af0359 base::MessagePumpDefault::Run()
STDERR: #15 0x000001aedede base::MessageLoop::RunHandler()
STDERR: #16 0x000001b0f8ac base::RunLoop::Run()
STDERR: #17 0x000004107d7b content::RendererMain()
STDERR: #18 0x00000135c2d2 content::RunZygote()
STDERR: #19 0x00000135c884 content::RunNamedProcessTypeMain()
STDERR: #20 0x00000135d4d6 content::ContentMainRunnerImpl::Run()
STDERR: #21 0x000002959b75 service_manager::Main()
STDERR: #22 0x0000007de1c2 content::ContentMain()
STDERR: #23 0x000000443151 main
STDERR: #24 0x7f8a1e8fff45 __libc_start_main
STDERR: #25 0x00000044302d <unknown>
STDERR: 
