[Not ready for review] Add Streams API support to FileReader

Source/core/fileapi/FileReader.h

Index: Source/core/fileapi/FileReader.h
diff --git a/Source/core/fileapi/FileReader.h b/Source/core/fileapi/FileReader.h
index 27a4a2bbb5f10fed5195fd6a61014b6ef9a61144..f96edd57eb9ebfd8e33cbd2cb0d7c8e47164909e 100644
--- a/Source/core/fileapi/FileReader.h
+++ b/Source/core/fileapi/FileReader.h
@@ -37,13 +37,13 @@
 #include "core/fileapi/FileError.h"
 #include "core/fileapi/FileReaderLoader.h"
 #include "core/fileapi/FileReaderLoaderClient.h"
+#include "core/fileapi/Stream.h"
 #include "wtf/Forward.h"
 #include "wtf/RefCounted.h"
 #include "wtf/text/WTFString.h"
 
 namespace WebCore {
 
-class Blob;
 class ScriptExecutionContext;
 
 typedef int ExceptionCode;
@@ -65,6 +65,7 @@ public:
     void readAsText(Blob*, const String& encoding, ExceptionCode&);
     void readAsText(Blob*, ExceptionCode&);
     void readAsDataURL(Blob*, ExceptionCode&);
+    void readAsArrayBuffer(Stream*, ExceptionCode&);
     void abort();
 
     void doAbort();
@@ -109,7 +110,7 @@ private:
     virtual EventTargetData* ensureEventTargetData() { return &m_eventTargetData; }
 
     void terminate();
-    void readInternal(Blob*, FileReaderLoader::ReadType, ExceptionCode&);
+    void readInternal(Blob*, Stream*, FileReaderLoader::ReadType, ExceptionCode&);
     void fireErrorEvent(int httpStatusCode);
     void fireEvent(const AtomicString& type);
 
@@ -118,6 +119,7 @@ private:
     EventTargetData m_eventTargetData;
 
     RefPtr<Blob> m_blob;
+    RefPtr<Stream> m_stream;
     FileReaderLoader::ReadType m_readType;
     String m_encoding;