Execute end of scope tasks in isolate's MicrotasksCompletedCallback.

third_party/WebKit/Source/core/dom/Microtask.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 @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "core/dom/Microtask.h"
 
 #include "bindings/core/v8/V8PerIsolateData.h"
-#include "bindings/core/v8/V8RecursionScope.h"
 #include "platform/ScriptForbiddenScope.h"
 #include "platform/Task.h"
 #include "public/platform/WebTaskRunner.h"
 #include <v8.h>
 
 namespace blink {
 
 void Microtask::performCheckpoint(v8::Isolate* isolate)
 {
     V8PerIsolateData* isolateData = V8PerIsolateData::from(isolate);
     ASSERT(isolateData);
     if (isolateData->recursionLevel() || isolateData->performingMicrotaskCheckpoint() || isolateData->destructionPending() || ScriptForbiddenScope::isScriptForbidden())
         return;
     isolateData->setPerformingMicrotaskCheckpoint(true);
-    {
-        // Ensure that end-of-task-or-microtask actions are performed.
-        V8RecursionScope recursionScope(isolate);
-        isolate->RunMicrotasks();
-    }
+    isolate->RunMicrotasks();
     isolateData->setPerformingMicrotaskCheckpoint(false);
 }
 
-bool Microtask::performingCheckpoint(v8::Isolate* isolate)
-{
-    return V8PerIsolateData::from(isolate)->performingMicrotaskCheckpoint();
-}
-
 static void microtaskFunctionCallback(void* data)
 {
     OwnPtr<WebTaskRunner::Task> task = adoptPtr(static_cast<WebTaskRunner::Task*>(data));
     task->run();
 }
 
 void Microtask::enqueueMicrotask(PassOwnPtr<WebTaskRunner::Task> callback)
 {
     v8::Isolate* isolate = v8::Isolate::GetCurrent();
     isolate->EnqueueMicrotask(&microtaskFunctionCallback, callback.leakPtr());
 }
 
 void Microtask::enqueueMicrotask(PassOwnPtr<Closure> callback)
 {
     enqueueMicrotask(adoptPtr(new Task(callback)));
 }
 
 } // namespace blink