Oilpan: have DOMException be on the heap by default.

Source/core/streams/ReadableStream.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef ReadableStream_h
 #define ReadableStream_h
 
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptPromiseProperty.h"
 #include "bindings/core/v8/ScriptState.h"
@@ skipping 35 matching lines @@
     State stateInternal() const { return m_state; }
     DOMException* storedException() { return m_exception.get(); }
 
     virtual ScriptPromise read(ScriptState*) = 0;
     ScriptPromise cancel(ScriptState*);
     ScriptPromise cancel(ScriptState*, ScriptValue reason);
     ScriptPromise cancelInternal(ScriptState*, ScriptValue reason);
 
     virtual bool hasPendingReads() const = 0;
     virtual void resolveAllPendingReadsAsDone() = 0;
-    virtual void rejectAllPendingReads(PassRefPtrWillBeRawPtr<DOMException>) = 0;
+    virtual void rejectAllPendingReads(DOMException*) = 0;
 
     void close();
-    void error(PassRefPtrWillBeRawPtr<DOMException>);
+    void error(DOMException*);
 
     void didSourceStart();
 
     // This function is not a getter. It creates an ReadableStreamReader and
     // returns it.
     ReadableStreamReader* getReader(ExecutionContext*, ExceptionState&);
     // Only ReadableStreamReader methods should call this function.
     void setReader(ReadableStreamReader*);
 
     bool isLocked() const { return m_reader; }
     bool isLockedTo(const ReadableStreamReader* reader) const { return m_reader == reader; }
 
     DECLARE_VIRTUAL_TRACE();
 
 protected:
     bool enqueuePreliminaryCheck();
     bool enqueuePostAction();
     void readInternalPostAction();
 
 private:
-    using WaitPromise = ScriptPromiseProperty<Member<ReadableStream>, ToV8UndefinedGenerator, RefPtrWillBeMember<DOMException>>;
-    using ClosedPromise = ScriptPromiseProperty<Member<ReadableStream>, ToV8UndefinedGenerator, RefPtrWillBeMember<DOMException>>;
+    using WaitPromise = ScriptPromiseProperty<Member<ReadableStream>, ToV8UndefinedGenerator, Member<DOMException>>;
+    using ClosedPromise = ScriptPromiseProperty<Member<ReadableStream>, ToV8UndefinedGenerator, Member<DOMException>>;
 
     virtual bool isQueueEmpty() const = 0;
     virtual void clearQueue() = 0;
     // This function will call ReadableStream::error on error.
     virtual bool shouldApplyBackpressure() = 0;
 
     void callPullIfNeeded();
     void closeInternal();
 
     Member<UnderlyingSource> m_source;
     bool m_isStarted;
     bool m_isDraining;
     bool m_isPulling;
     State m_state;
 
-    RefPtrWillBeMember<DOMException> m_exception;
+    Member<DOMException> m_exception;
     Member<ReadableStreamReader> m_reader;
 };
 
 } // namespace blink
 
 #endif // ReadableStream_h