Forbid Oilpan GC in blink::testing::runPendingTasks

third_party/WebKit/Source/platform/testing/UnitTestHelpers.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 13 matching lines @@
  */
 
 #include "platform/testing/UnitTestHelpers.h"
 
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/path_service.h"
 #include "platform/SharedBuffer.h"
 #include "platform/Timer.h"
+#include "platform/heap/Handle.h"
 #include "public/platform/FilePathConversion.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebString.h"
 #include "public/platform/WebTaskRunner.h"
 #include "public/platform/WebThread.h"
 #include "public/platform/WebTraceLocation.h"
 #include "wtf/text/StringUTF8Adaptor.h"
 
 namespace blink {
 namespace testing {
 
 void runPendingTasks()
 {
     Platform::current()->currentThread()->getWebTaskRunner()->postTask(BLINK_FROM_HERE, bind(&exitRunLoop));
+
+    // We forbid GC in the tasks. Otherwise the registered GCTaskObserver tries
+    // to run GC with NoHeapPointerOnStack.
+    ThreadState::current()->enterGCForbiddenScope();
     enterRunLoop();
+    ThreadState::current()->leaveGCForbiddenScope();
 }
 
 void runDelayedTasks(double delayMs)
 {
     Platform::current()->currentThread()->getWebTaskRunner()->postDelayedTask(BLINK_FROM_HERE, bind(&exitRunLoop), delayMs);
     enterRunLoop();
 }
 
 String blinkRootDir()
 {
@@ skipping 22 matching lines @@
     base::MessageLoop::current()->QuitWhenIdle();
 }
 
 void yieldCurrentThread()
 {
     base::PlatformThread::YieldCurrentThread();
 }
 
 } // namespace testing
 } // namespace blink