ASSERTION FAILED: inlineBox == m_inlineBoxWrapper in WebCore::RenderLineBreak::localCaretRect

[Renata Hodovan]

Created attachment 267080 [details]
Test

Load the attached test with debug MiniBrowser:

<script>
window.onload = function() {
    document.getElementById('id_7').focus()
}
</script>
<em id="id_7" contenteditable>
<var><wbr><svg></svg>

OS: Ubuntu 15.10 x86_64
Checked build: debug EFL
Checked version: 2559fac


Backtrace:
ASSERTION FAILED: inlineBox == m_inlineBoxWrapper
../../Source/WebCore/rendering/RenderLineBreak.cpp(172) : virtual WebCore::LayoutRect WebCore::RenderLineBreak::localCaretRect(WebCore::InlineBox*, int, WebCore::LayoutUnit*)
1   0x7fa47cbf6fb8 WTFCrash
2   0x7fa47bab77ea WebCore::RenderLineBreak::localCaretRect(WebCore::InlineBox*, int, WebCore::LayoutUnit*)
3   0x7fa47b32f81e WebCore::VisiblePosition::localCaretRect(WebCore::RenderObject*&) const
4   0x7fa47b349756 WebCore::localCaretRectInRendererForCaretPainting(WebCore::VisiblePosition const&, WebCore::RenderBlock*&)
5   0x7fa47b2f0966 WebCore::CaretBase::updateCaretRect(WebCore::Document*, WebCore::VisiblePosition const&)
6   0x7fa47b2f0ded WebCore::FrameSelection::recomputeCaretRect()
7   0x7fa47b2f36c4 WebCore::FrameSelection::updateAppearance()
8   0x7fa47b2e9985 WebCore::FrameSelection::updateAndRevealSelection(WebCore::AXTextStateChangeIntent const&)
9   0x7fa47b2e98aa WebCore::FrameSelection::setSelection(WebCore::VisibleSelection const&, unsigned int, WebCore::AXTextStateChangeIntent, WebCore::FrameSelection::CursorAlignOnScroll, WebCore::TextGranularity)
10  0x7fa47b1ee6ea WebCore::Element::updateFocusAppearance(WebCore::SelectionRestorationMode, WebCore::SelectionRevealMode)
11  0x7fa47b1ee41f WebCore::Element::focus(bool, WebCore::FocusDirection)
12  0x7fa47bf0584c WebCore::jsElementPrototypeFunctionFocus(JSC::ExecState*)
13  0x7fa417fff0c8
Aborted (core dumped)

Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007fa47cbf6fbd in WTFCrash () at ../../Source/WTF/wtf/Assertions.cpp:321
321     *(int *)(uintptr_t)0xbbadbeef = 0;
[Current thread is 1 (Thread 0x7fa48072ca80 (LWP 9860))]
#0  0x00007fa47cbf6fbd in WTFCrash () at ../../Source/WTF/wtf/Assertions.cpp:321
#1  0x00007fa47bab77ea in WebCore::RenderLineBreak::localCaretRect (this=0x7fa45c5e2c98, inlineBox=0x0, caretOffset=0, extraWidthToEndOfLine=0x0) at ../../Source/WebCore/rendering/RenderLineBreak.cpp:172
#2  0x00007fa47b32f81e in WebCore::VisiblePosition::localCaretRect (this=0x7ffcddd36490, renderer=@0x7ffcddd36360: 0x7fa45c5e2c98) at ../../Source/WebCore/editing/VisiblePosition.cpp:619
#3  0x00007fa47b349756 in WebCore::localCaretRectInRendererForCaretPainting (caretPosition=..., caretPainter=@0x7ffcddd363e0: 0x7fa45c568230) at ../../Source/WebCore/editing/htmlediting.cpp:1330
#4  0x00007fa47b2f0966 in WebCore::CaretBase::updateCaretRect (this=0x7fa45c568230, document=0x7fa45c41d9c0, caretPosition=...) at ../../Source/WebCore/editing/FrameSelection.cpp:1415
#5  0x00007fa47b2f0ded in WebCore::FrameSelection::recomputeCaretRect (this=0x7fa45c568230) at ../../Source/WebCore/editing/FrameSelection.cpp:1469
#6  0x00007fa47b2f36c4 in WebCore::FrameSelection::updateAppearance (this=0x7fa45c568230) at ../../Source/WebCore/editing/FrameSelection.cpp:1889
#7  0x00007fa47b2e9985 in WebCore::FrameSelection::updateAndRevealSelection (this=0x7fa45c568230, intent=...) at ../../Source/WebCore/editing/FrameSelection.cpp:378
#8  0x00007fa47b2e98aa in WebCore::FrameSelection::setSelection (this=0x7fa45c568230, selection=..., options=6, intent=..., align=WebCore::FrameSelection::AlignCursorOnScrollIfNeeded, granularity=WebCore::CharacterGranularity) at ../../Source/WebCore/editing/FrameSelection.cpp:352
#9  0x00007fa47b1ee6ea in WebCore::Element::updateFocusAppearance (this=0x7fa45c5e2a28, revealMode=WebCore::SelectionRevealMode::Reveal) at ../../Source/WebCore/dom/Element.cpp:2268
#10 0x00007fa47b1ee41f in WebCore::Element::focus (this=0x7fa45c5e2a28, restorePreviousSelection=true, direction=WebCore::FocusDirectionNone) at ../../Source/WebCore/dom/Element.cpp:2233
#11 0x00007fa47bf0584c in WebCore::jsElementPrototypeFunctionFocus (state=0x7ffcddd368f0) at DerivedSources/WebCore/JSElement.cpp:5075
#12 0x00007fa417fff0c8 in ?? ()
#13 0x00007ffcddd36970 in ?? ()
#14 0x00007fa4703be57c in llint_entry () from webkit/WebKitBuild/Debug/lib/libjavascriptcore_efl.so.1

[Brent Fulgham]

This reproduces in r204037.

[Radar WebKit Bug Importer]

<rdar://problem/27720168>

[Myles C. Maxfield]

Reproduces in r226920.