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

third_party/WebKit/Source/modules/encryptedmedia/MediaKeys.cpp

Index: third_party/WebKit/Source/modules/encryptedmedia/MediaKeys.cpp
diff --git a/third_party/WebKit/Source/modules/encryptedmedia/MediaKeys.cpp b/third_party/WebKit/Source/modules/encryptedmedia/MediaKeys.cpp
index 540b4489bd8a134771d55ff36dd5cae01f50b7fe..c00c1968d992da965f41af455b7746bfb77b698e 100644
--- a/third_party/WebKit/Source/modules/encryptedmedia/MediaKeys.cpp
+++ b/third_party/WebKit/Source/modules/encryptedmedia/MediaKeys.cpp
@@ -49,12 +49,12 @@
         return m_result;
     }
 
-    DOMArrayBuffer* data() const
+    const RefPtr<DOMArrayBuffer> data() const
     {
         return m_data;
     }
 
-    static PendingAction* CreatePendingSetServerCertificate(ContentDecryptionModuleResult* result, DOMArrayBuffer* serverCertificate)
+    static PendingAction* CreatePendingSetServerCertificate(ContentDecryptionModuleResult* result, PassRefPtr<DOMArrayBuffer> serverCertificate)
     {
         ASSERT(result);
         ASSERT(serverCertificate);
@@ -68,18 +68,17 @@
     DEFINE_INLINE_TRACE()
     {
         visitor->trace(m_result);
-        visitor->trace(m_data);
     }
 
 private:
-    PendingAction(ContentDecryptionModuleResult* result, DOMArrayBuffer* data)
+    PendingAction(ContentDecryptionModuleResult* result, PassRefPtr<DOMArrayBuffer> data)
         : m_result(result)
         , m_data(data)
     {
     }
 
     const Member<ContentDecryptionModuleResult> m_result;
-    const Member<DOMArrayBuffer> m_data;
+    const RefPtr<DOMArrayBuffer> m_data;
 };
 
 MediaKeys* MediaKeys::create(ExecutionContext* context, const WebVector<WebEncryptedMediaSessionType>& supportedSessionTypes, PassOwnPtr<WebContentDecryptionModule> cdm)
@@ -154,14 +153,14 @@
 
     // 3. Let certificate be a copy of the contents of the serverCertificate
     //    parameter.
-    DOMArrayBuffer* serverCertificateBuffer = DOMArrayBuffer::create(serverCertificate.data(), serverCertificate.byteLength());
+    RefPtr<DOMArrayBuffer> serverCertificateBuffer = DOMArrayBuffer::create(serverCertificate.data(), serverCertificate.byteLength());
 
     // 4. Let promise be a new promise.
     SimpleContentDecryptionModuleResultPromise* result = new SimpleContentDecryptionModuleResultPromise(scriptState);
     ScriptPromise promise = result->promise();
 
     // 5. Run the following steps asynchronously (documented in timerFired()).
-    m_pendingActions.append(PendingAction::CreatePendingSetServerCertificate(result, serverCertificateBuffer));
+    m_pendingActions.append(PendingAction::CreatePendingSetServerCertificate(result, serverCertificateBuffer.release()));
     if (!m_timer.isActive())
         m_timer.startOneShot(0, BLINK_FROM_HERE);