Steps to reproduce the problem:
1. build the blink_tests and content_shell_apk with target_os is android
2. run tests by third_party/blink/tools/run_web_tests.py -t android --android

What is the expected behavior?
run tests as the docs says https://chromium.googlesource.com/chromium/src/+/master/docs/testing/layout_tests.md

What went wrong?
the content shell crashes by the ClassNotFoundException, even after I fixed this issue,  a native crash occured.

The ClassNotFoundException can be found in the chromium waterfall, you can find it at:

https://ci.chromium.org/buildbot/chromium.webkit/WebKit%20Android%20(Nexus4)/79869

with the log:
https://logs.chromium.org/v/?s=chromium%2Fbb%2Fchromium.webkit%2FWebKit_Android__Nexus4_%2F79869%2F%2B%2Frecipes%2Fsteps%2Fwebkit_tests%2F0%2Fstdout

In addition, the native crash after I fixed this issue can be found in the attchment.

Did this work before? No 

Chrome version: master  Channel: n/a
OS Version: 4.4
Flash Version:
 

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