Oilpan: move core/fileapi to oilpan's heap.

Source/modules/mediasource/SourceBuffer.h

Index: Source/modules/mediasource/SourceBuffer.h
diff --git a/Source/modules/mediasource/SourceBuffer.h b/Source/modules/mediasource/SourceBuffer.h
index ddc2b5aa392eab3996d6f87f28a92f90ac43e930..b16a79004925d90f0476aa6cb65cc5638826348a 100644
--- a/Source/modules/mediasource/SourceBuffer.h
+++ b/Source/modules/mediasource/SourceBuffer.h
@@ -76,8 +76,8 @@ public:
     void setTimestampOffset(double, ExceptionState&);
     void appendBuffer(PassRefPtr<ArrayBuffer> data, ExceptionState&);
     void appendBuffer(PassRefPtr<ArrayBufferView> data, ExceptionState&);
-    void appendStream(PassRefPtr<Stream>, ExceptionState&);
-    void appendStream(PassRefPtr<Stream>, unsigned long long maxSize, ExceptionState&);
+    void appendStream(PassRefPtrWillBeRawPtr<Stream>, ExceptionState&);
+    void appendStream(PassRefPtrWillBeRawPtr<Stream>, unsigned long long maxSize, ExceptionState&);
     void abort(ExceptionState&);
     void remove(double start, double end, ExceptionState&);
     double appendWindowStart() const;
@@ -111,7 +111,7 @@ private:
 
     void removeAsyncPart();
 
-    void appendStreamInternal(PassRefPtr<Stream>, ExceptionState&);
+    void appendStreamInternal(PassRefPtrWillBeRawPtr<Stream>, ExceptionState&);
     void appendStreamAsyncPart();
     void appendStreamDone(bool success);
     void clearAppendStreamState();
@@ -142,7 +142,7 @@ private:
     bool m_streamMaxSizeValid;
     unsigned long long m_streamMaxSize;
     AsyncMethodRunner<SourceBuffer> m_appendStreamAsyncPartRunner;
-    RefPtr<Stream> m_stream;
+    RefPtrWillBeMember<Stream> m_stream;
     OwnPtr<FileReaderLoader> m_loader;
 };