Initial implementation of bindings and basic classes for worklets.

third_party/WebKit/Source/bindings/core/v8/ActiveDOMCallback.cpp

 /*
  * Copyright (C) 2010. 2012 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 12 matching lines @@
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * 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 "bindings/core/v8/ActiveDOMCallback.h"
 
+#include "bindings/core/v8/GlobalScopeScriptController.h"
 #include "core/dom/ActiveDOMObject.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/workers/WorkerGlobalScope.h"
 
 namespace blink {
 
 ActiveDOMCallback::ActiveDOMCallback(ExecutionContext* context)
     : ContextLifecycleObserver(context)
 {
 }
 
 ActiveDOMCallback::~ActiveDOMCallback()
 {
 }
 
 bool ActiveDOMCallback::canInvokeCallback() const
 {
     ExecutionContext* context = executionContext();
     return context && !context->activeDOMObjectsAreSuspended() && !context->activeDOMObjectsAreStopped();
 }
 
 bool ActiveDOMCallback::isScriptControllerTerminating() const
 {
     ExecutionContext* context = executionContext();
     if (context && context->isWorkerGlobalScope()) {
-        WorkerScriptController* scriptController = toWorkerGlobalScope(context)->script();
+        GlobalScopeScriptController* scriptController = toWorkerGlobalScope(context)->script();

[kinuko, 2015/12/24 04:45:51]

Here we're checking isWorkerGlobalScope and doing toWorkerGlobalScope, I think
we want to stick to WorkerScriptController?  (Assuming we won't be supporting
APIs that use callback in worklets)

         if (!scriptController || scriptController->isExecutionForbidden() || scriptController->isExecutionTerminating())
             return true;
     }
     return false;
 }
 
 } // namespace blink