Specialize base::IsWeakReceiver for Blink weak pointers to support base::Bind (1/5)

third_party/WebKit/Source/platform/scheduler/CancellableTaskFactory.h

Index: third_party/WebKit/Source/platform/scheduler/CancellableTaskFactory.h
diff --git a/third_party/WebKit/Source/platform/scheduler/CancellableTaskFactory.h b/third_party/WebKit/Source/platform/scheduler/CancellableTaskFactory.h
index c6684da5ea27af4da590e0143ccf118530b9b2d8..f28f262d26d1bf2c3d6d0bc5580eca58d2cbc6f4 100644
--- a/third_party/WebKit/Source/platform/scheduler/CancellableTaskFactory.h
+++ b/third_party/WebKit/Source/platform/scheduler/CancellableTaskFactory.h
@@ -39,7 +39,7 @@ public:
     template<typename T>
     static std::unique_ptr<CancellableTaskFactory> create(T* thisObject, void (T::*method)(), typename std::enable_if<IsGarbageCollectedType<T>::value>::type* = nullptr)
     {
-        return wrapUnique(new CancellableTaskFactory(WTF::bind(method, CrossThreadWeakPersistentThisPointer<T>(thisObject))));
+        return wrapUnique(new CancellableTaskFactory(WTF::bind(method, wrapCrossThreadWeakPersistent(thisObject))));

[hiroshige, 2016/06/23 09:56:18]

This is WTF::bind() (not threadSafeBind()), so can we use wrapPersistent() here?

(CrossThreadWeakPersistentThisPointer is older than WeakPersistentThisPointer
and there might be same-thread usage of CrossThreadWeakPersistentThisPointer, I
suspect, but not sure)

[tzik, 2016/06/23 11:48:01]

Done.

     }
 
     template<typename T>