Clean up EGL thread state at thread exit in nanobench and DM

tests/skia_test.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "CrashHandler.h"
 #include "OverwriteLine.h"
 #include "Resources.h"
@@ skipping 156 matching lines @@
         const Test& test = iter->factory();
         if (should_run(test.name, test.needsGpu)) {
             toRun++;
         }
         total++;
     }
 
     // Now run them.
     int skipCount = 0;
 
+#if SK_SUPPORT_GPU
+    SkTaskGroup::Enabler enabled(FLAGS_threads, GrContextFactory::ReleaseGpuAPIsInThread);
+#else
     SkTaskGroup::Enabler enabled(FLAGS_threads);
+#endif
     SkTaskGroup cpuTests;
     SkTArray<const Test*> gpuTests;
 
     Status status(toRun);
     for (const TestRegistry* iter = TestRegistry::Head(); iter;
          iter = iter->next()) {
         const Test& test = iter->factory();
         if (!should_run(test.name, test.needsGpu)) {
             ++skipCount;
         } else if (test.needsGpu) {
@@ skipping 23 matching lines @@
         SkDebugf(
                 "\nFinished %d tests, %d failures, %d skipped. "
                 "(%d internal tests)",
                 toRun, status.failCount(), skipCount, status.testCount());
         if (gVerboseFinalize) {
             (*gVerboseFinalize)();
         }
     }
 
     SkDebugf("\n");
+#if SK_SUPPORT_GPU
+    // The main thread maybe ran GPU code.
+    GrContextFactory::ReleaseGpuAPIsInThread();
+#endif
     return (status.failCount() == 0) ? 0 : 1;
 }
 
 #if !defined(SK_BUILD_FOR_IOS)
 int main(int argc, char** argv) {
     SkCommandLineFlags::Parse(argc, argv);
     return test_main();
 }
 #endif