based on Findit results, assigning to pdr@ - Could you please check the above issue & help us in finding an owner it its not yours.

Suspected CLs	The result is a list of CLs that change the crashed files.

Author: pdr
Project: chromium
Changelist: https://chromium.googlesource.com/chromium/src//+/e107996d6e78d90aca060c41d93191eaf1625dc9
Time: Tue Mar 08 21:38:04 2016
Lines 751-752 of file Font.cpp which potentially caused crash are changed in this cl (frame #4, "floatWidthForComplexText").

File CachingWordShaper.cpp is changed in this cl (and is part of stack frame #3, "blink::CachingWordShaper::width")
Minimum distance from crash line to modified line: 0. (file: Font.cpp, crashed on: 751, modified: 751).

Suspected Project: chromium
Suspected Component: Blink>Fonts

I've re-done the regressed, blame, and fixed tasks for this on clusterfuzz. I don't think my patch is related. It looks like m_fontData is null but it's not clear how. A null deref should probably be P2 instead of P1. Opening this up to Blink>Fonts.

Note: you'll need to run a local server for this to repro: python -m SimpleHTTPServer, then hit localhost:8000/fuzz-104.html

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/63402c5b51408d48710846f739fe07b2d1b19d1e

commit 63402c5b51408d48710846f739fe07b2d1b19d1e
Author: eae <eae@chromium.org>
Date: Mon Jul 25 23:36:39 2016

Add null-check to ShapeResult::fallbackFonts

Add a null check for m_runs[i]->m_fontData in ShapeResult::fallbackFonts
to ensure that isTextOrientationFallbackOf is only called when it's set.

TBR=pdr@chromium.org
BUG= 629005 

Review-Url: https://codereview.chromium.org/2177163003
Cr-Commit-Position: refs/heads/master@{#407633}

[modify] https://crrev.com/63402c5b51408d48710846f739fe07b2d1b19d1e/third_party/WebKit/Source/platform/fonts/shaping/ShapeResult.cpp

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