Providing Findit results for internal purpose:
Suspected CLs	Findit could not determine the memory tool from the stacktrace. Is it in a new format?

using codesearch, seeing some changes to 'BreakingContextInlineHeaders.h' in
https://chromium.googlesource.com/chromium/src/+/47e23e263b551925dccd72e0b170f64cf7ab8b9a

kyounga.ra@, could you please check the issue.

Given the previous fix still leaves some other cases for this to fire, and given this DCHECK isn't as fatal as I thought when I put it, I prefer to remove the DCHECK.

Sorry for late reply.

Then, I'm not authorized to access the detailed report and minimized testcase.

@kojii, I'm not sure about the text-layout,
But, even if the DCHECK is not fatal, there are wrong text-layout in that case, right? 

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/7063f99d4a6ae1b57d47d012b4e53c57f25187d6

commit 7063f99d4a6ae1b57d47d012b4e53c57f25187d6
Author: kojii <kojii@chromium.org>
Date: Tue Oct 18 01:20:27 2016

Remove DCHECK in BreakingContextInlineHeader that wasn't much useful

Originally thought this failure can lead to layout failures, but as we
understand failing cases, its failure does not look to cause any real
problems.

BUG= 655067 

Review-Url: https://codereview.chromium.org/2425593002
Cr-Commit-Position: refs/heads/master@{#425845}

[modify] https://crrev.com/7063f99d4a6ae1b57d47d012b4e53c57f25187d6/third_party/WebKit/Source/core/layout/line/BreakingContextInlineHeaders.h

ClusterFuzz has detected this issue as fixed in range 425834:425887.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5290183006355456

Fuzzer: inferno_twister
Job Type: linux_debug_content_shell_drt
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  m_width.fitsOnLine(rect.width() - 1) in BreakingContextInlineHeaders.h
  blink::BreakingContext::rewindToMidWordBreak
  blink::BreakingContext::handleText
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_debug_content_shell_drt&range=393279:393304
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_debug_content_shell_drt&range=425834:425887

Minimized Testcase (0.10 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv96NCPlTxz7TTCGYZUtfGp5be933pPtudtrhbd012wdRY0kVO4ZdDsaxks0ug-WygbRrtjwa8rr4xvTZhhZvTSQP62FJQnxXaYPZA7eTq0JTX2SNHqV_WaVMvhxxr0wli8QLA6lgHXfpgk1xeUeFvgUXN8InDg?testcase_id=5290183006355456
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