Revert of Replace references to old blink isolate files in gtest_test_instance.py. (patchset #1 id:1 of https://codereview.chromium.org/1311533007/ )
Revert of Replace references to old blink isolate files in gtest_test_instance.py. (patchset #1 id:1 of https://codereview.chromium.org/1311533007/ )

Reason for revert:
broke android build, new isolate file probably needs an android clause

https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Android%20%28Nexus4%29/builds/37274

Original issue's description:
> Replace references to old blink isolate files in gtest_test_instance.py.
>
> BUG=524758
>
> Committed: https://crrev.com/1f9c42098fe19c3daf4611fc58442009abd3ada9
> Cr-Commit-Position: refs/heads/master@{#346808}

TBR=dpranke@chromium.org,maruel@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=524758

Review URL: https://codereview.chromium.org/1323073004

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#346832}

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