Revert of Move DOMArrayBuffer, DOMArrayBufferViews and DataView to the heap.

third_party/WebKit/public/web/WebArrayBuffer.h

Index: third_party/WebKit/public/web/WebArrayBuffer.h
diff --git a/third_party/WebKit/public/web/WebArrayBuffer.h b/third_party/WebKit/public/web/WebArrayBuffer.h
index 668bbfdbe72ebe2607e67785d267d03a6434dda5..883e62f2a3e3a8653fb81d72870cac0ac9b9bad0 100644
--- a/third_party/WebKit/public/web/WebArrayBuffer.h
+++ b/third_party/WebKit/public/web/WebArrayBuffer.h
@@ -34,6 +34,10 @@
 #include "../platform/WebCommon.h"
 #include "../platform/WebPrivatePtr.h"
 
+#if INSIDE_BLINK
+namespace WTF { template <typename T> class PassRefPtr; }
+#endif
+
 namespace blink {
 
 class DOMArrayBuffer;
@@ -60,9 +64,9 @@
     BLINK_EXPORT unsigned byteLength() const;
 
 #if INSIDE_BLINK
-    BLINK_EXPORT WebArrayBuffer(DOMArrayBuffer*);
-    BLINK_EXPORT WebArrayBuffer& operator=(DOMArrayBuffer*);
-    BLINK_EXPORT operator DOMArrayBuffer*() const;
+    BLINK_EXPORT WebArrayBuffer(const WTF::PassRefPtr<DOMArrayBuffer>&);
+    BLINK_EXPORT WebArrayBuffer& operator=(const WTF::PassRefPtr<DOMArrayBuffer>&);
+    BLINK_EXPORT operator WTF::PassRefPtr<DOMArrayBuffer>() const;
 #endif
 
 protected: