e.g.:
https://build.chromium.org/p/chromium.android/builders/Android%20Webview%20L%20%28dbg%29/builds/12510
https://build.chromium.org/p/chromium.android/builders/Android%20Webview%20M%20%28dbg%29/builds/8155
from stack_tool_for_tombstones:
I 8.863s Main [FATAL:thread_task_runner_handle.cc(23)] Check failed: current.
I 8.863s Main
I 8.863s Main Stack Trace:
I 8.863s Main RELADDR FUNCTION FILE:LINE
I 8.863s Main 027fc8b1 logging::LogMessage::~LogMessage() /b/build/slave/android_build/build/src/base/logging.cc:519
I 8.863s Main 0282b5cd base::ThreadTaskRunnerHandle::Get() /b/build/slave/android_build/build/src/base/thread_task_runner_handle.cc:23
I 8.863s Main 0282c75f base::SequencedWorkerPool::SequencedWorkerPool(unsigned int, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) /b/build/slave/android_build/build/src/base/threading/sequenced_worker_pool.cc:1256
I 8.863s Main v------> BrowserThreadGlobals /b/build/slave/android_build/build/src/content/browser/browser_thread_impl.cc:94
I 8.863s Main v------> New /b/build/slave/android_build/build/src/base/lazy_instance.h:69
I 8.863s Main v------> New /b/build/slave/android_build/build/src/base/lazy_instance.h:98
I 8.863s Main 021ef59b Pointer /b/build/slave/android_build/build/src/base/lazy_instance.h:163
I 8.863s Main v------> Get /b/build/slave/android_build/build/src/base/lazy_instance.h:137
I 8.863s Main 021efa13 content::BrowserThread::CurrentlyOn(content::BrowserThread::ID) /b/build/slave/android_build/build/src/content/browser/browser_thread_impl.cc:412
I 8.863s Main v------> GetAwDrawGLFunction /b/build/slave/android_build/build/src/android_webview/native/aw_gl_functor.cc:90
I 8.863s Main 0033f3a5 Java_org_chromium_android_1webview_AwGLFunctor_nativeGetAwDrawGLFunction /b/build/slave/android_build/build/src/out/Debug/gen/android_webview/native/native_jni/android_webview/jni/AwGLFunctor_jni.h:62
I 8.863s Main 00478a0d <unknown>
Comment 1 by bugdroid1@chromium.org
, Apr 25 2016