rbpotter @ could you please look into this.please feel free to re-assigned back if needed. thanks in advance !

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/2f5080ac8257bc1dacb6045bdf2d2a3fedb95531

commit 2f5080ac8257bc1dacb6045bdf2d2a3fedb95531
Author: rbpotter <rbpotter@chromium.org>
Date: Sat Oct 29 04:22:29 2016

Printing: Fix undefined behavior for near 0 scaling.

Sometimes casting 0 integer value to a float results in a very
small number (on the order of 1e-312). This results in integer
overflows when this scaling is used. Check scaling against
0.01f instead of 0 since we know it has to be an integer/100.
If it is less than .01 the value must have been 0 (not set),
so set it to the default value (1.0).

Undefined behavior was introduced in:
https://crrev.com/427556

BUG= 660135 

Review-Url: https://codereview.chromium.org/2454293004
Cr-Commit-Position: refs/heads/master@{#428597}

[modify] https://crrev.com/2f5080ac8257bc1dacb6045bdf2d2a3fedb95531/components/printing/renderer/print_web_view_helper.cc
[modify] https://crrev.com/2f5080ac8257bc1dacb6045bdf2d2a3fedb95531/components/printing/renderer/print_web_view_helper.h
[modify] https://crrev.com/2f5080ac8257bc1dacb6045bdf2d2a3fedb95531/components/printing/renderer/print_web_view_helper_mac.mm

ClusterFuzz has detected this issue as fixed in range 428482:428575.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6429163960664064

Fuzzer: inferno_twister
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  blink::ChromePrintContext::spoolPage
  blink::ChromePrintContext::spoolSinglePage
  printing::PrintWebViewHelper::RenderPageContent
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_ubsan_chrome&range=427353:427578
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_ubsan_chrome&range=428482:428575

Unminimized Testcase: https://cluster-fuzz.appspot.com/download/AMIfv97HrRPwNSI3vAkdAyEEklzMFH_rMafaFM2pKBw8WMzZDFBgZzVBOklcJOPtjeWQtqrvuWDsHr341XfdBvSjlnYNVchQHQ6CU4Yax9szifFk5iiwZcckhiXZb5U71C8B5q-6qSe3FtHLaJO4fTcmHRHmuN7omh-aUK9Lckz5jkrfW520w1c?testcase_id=6429163960664064


Additional requirements: Requires Gestures

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If you suspect that the result above is incorrect, try re-doing that job on the test case report page.

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