caryclark@, could you please look into this if possible?

Do we need to merge this fix (https://codereview.chromium.org/1601203002) to Beta branch: 2661 as well?

Thank you!

The following revision refers to this bug:
  https://skia.googlesource.com/skia.git/+/fa4c20e728c2b25f7b1a7d858adc8156005ec229

commit fa4c20e728c2b25f7b1a7d858adc8156005ec229
Author: caryclark <caryclark@google.com>
Date: Mon Mar 21 18:25:42 2016

exit computeFilters if filter width is zero

The fuzzer associated with this bug triggered an assert
when building the resize filter. I can't tell if there
is a more fundemental bug here or not.

Checking for a zero-sized filter fixes the fuzzer.

R=fmalita@chromium.org
BUG= 595856 
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1810333002

Review URL: https://codereview.chromium.org/1810333002

[modify] https://crrev.com/fa4c20e728c2b25f7b1a7d858adc8156005ec229/src/core/SkBitmapScaler.cpp

ClusterFuzz has detected this issue as fixed in range 382185:382751.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6010679009476608

Fuzzer: noel-image-flip
Job Type: linux_asan_chrome_mp
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x000000000000
Crash State:
  SkResizeFilter::computeFilters
  SkResizeFilter::SkResizeFilter
  SkBitmapScaler::Resize
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_asan_chrome_mp&range=172836:173286
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_asan_chrome_mp&range=382185:382751

Minimized Testcase (3.30 Kb): https://cluster-fuzz.appspot.com/download/AMIfv96iKQPJC85qSAKloa7dUPx5dhzdynE7UeW6UCjp99n-kmq95tPKyjK2k9pd5qy4EJbxyG-ngPW3TKdlqOZklrFdNcGFO4ruraudJjUh4-rXIhlkdRRJRrFanpug7DXEiK5LwVu2jKo8zPH2L8X6IzfNIsTbLA

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.

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

 Issue 609964  has been merged into this issue.

 Issue 588567  has been merged into this issue.

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