The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/d82e162920b55095efa40a8052e9539d2cf861bb

commit d82e162920b55095efa40a8052e9539d2cf861bb
Author: nhiroki <nhiroki@chromium.org>
Date: Thu Dec 15 09:14:26 2016

Worker: Stop running worker tests with BlinkGC::MainThreadHeapMode

Oilpan's per-thread heap mode is already shipped for workers and we no longer
have to run the tests on both BlinkGC::MainThreadHeapMode and
BlinkGC::PerThreadHeapMode.

BUG= 674400 

Review-Url: https://codereview.chromium.org/2578053002
Cr-Commit-Position: refs/heads/master@{#438790}

[modify] https://crrev.com/d82e162920b55095efa40a8052e9539d2cf861bb/third_party/WebKit/Source/core/loader/ThreadableLoaderTest.cpp
[modify] https://crrev.com/d82e162920b55095efa40a8052e9539d2cf861bb/third_party/WebKit/Source/core/workers/DedicatedWorkerTest.cpp
[modify] https://crrev.com/d82e162920b55095efa40a8052e9539d2cf861bb/third_party/WebKit/Source/core/workers/DedicatedWorkerThread.cpp
[modify] https://crrev.com/d82e162920b55095efa40a8052e9539d2cf861bb/third_party/WebKit/Source/core/workers/SharedWorkerThread.cpp
[modify] https://crrev.com/d82e162920b55095efa40a8052e9539d2cf861bb/third_party/WebKit/Source/core/workers/WorkerBackingThread.cpp
[modify] https://crrev.com/d82e162920b55095efa40a8052e9539d2cf861bb/third_party/WebKit/Source/core/workers/WorkerBackingThread.h
[modify] https://crrev.com/d82e162920b55095efa40a8052e9539d2cf861bb/third_party/WebKit/Source/core/workers/WorkerThreadTest.cpp
[modify] https://crrev.com/d82e162920b55095efa40a8052e9539d2cf861bb/third_party/WebKit/Source/core/workers/WorkerThreadTestHelper.h
[modify] https://crrev.com/d82e162920b55095efa40a8052e9539d2cf861bb/third_party/WebKit/Source/core/workers/WorkletThreadHolder.h
[modify] https://crrev.com/d82e162920b55095efa40a8052e9539d2cf861bb/third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerThread.cpp
[modify] https://crrev.com/d82e162920b55095efa40a8052e9539d2cf861bb/third_party/WebKit/Source/modules/webaudio/AudioWorkletThread.cpp