[K6] Replace bind() + GCed pointers with retainedRef()

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

 // 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.
 
 #include "modules/encryptedmedia/HTMLMediaElementEncryptedMedia.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "bindings/core/v8/ScriptState.h"
@@ skipping 148 matching lines @@
             // 5.2.1 If the user agent or CDM do not support removing the
             //       association, let this object's attaching media keys
             //       value be false and reject promise with a NotSupportedError.
             // 5.2.2 If the association cannot currently be removed,
             //       let this object's attaching media keys value be false
             //       and reject promise with an InvalidStateError.
             // 5.2.3 Stop using the CDM instance represented by the mediaKeys
             //       attribute to decrypt media data and remove the association
             //       with the media element.
             // (All 3 steps handled as needed in Chromium.)
-            OwnPtr<SuccessCallback> successCallback = bind(&SetMediaKeysHandler::setNewMediaKeys, this);
-            OwnPtr<FailureCallback> failureCallback = bind<ExceptionCode, const String&>(&SetMediaKeysHandler::clearFailed, this);
+            OwnPtr<SuccessCallback> successCallback = bind(&SetMediaKeysHandler::setNewMediaKeys, retainedRef(this));
+            OwnPtr<FailureCallback> failureCallback = bind<ExceptionCode, const String&>(&SetMediaKeysHandler::clearFailed, retainedRef(this));
             ContentDecryptionModuleResult* result = new SetContentDecryptionModuleResult(successCallback.release(), failureCallback.release());
             mediaPlayer->setContentDecryptionModule(nullptr, result->result());
 
             // Don't do anything more until |result| is resolved (or rejected).
             return;
         }
     }
 
     // MediaKeys not currently set or no player connected, so continue on.
     setNewMediaKeys();
 }
 
 void SetMediaKeysHandler::setNewMediaKeys()
 {
     WTF_LOG(Media, "SetMediaKeysHandler::setNewMediaKeys");
 
     // 5.3 If mediaKeys is not null, run the following steps:
     if (m_newMediaKeys) {
         // 5.3.1 Associate the CDM instance represented by mediaKeys with the
         //       media element for decrypting media data.
         // 5.3.2 If the preceding step failed, run the following steps:
         //       (done in setFailed()).
         // 5.3.3 Queue a task to run the Attempt to Resume Playback If Necessary
         //       algorithm on the media element.
         //       (Handled in Chromium).
         if (m_element->webMediaPlayer()) {
-            OwnPtr<SuccessCallback> successCallback = bind(&SetMediaKeysHandler::finish, this);
-            OwnPtr<FailureCallback> failureCallback = bind<ExceptionCode, const String&>(&SetMediaKeysHandler::setFailed, this);
+            OwnPtr<SuccessCallback> successCallback = bind(&SetMediaKeysHandler::finish, retainedRef(this));
+            OwnPtr<FailureCallback> failureCallback = bind<ExceptionCode, const String&>(&SetMediaKeysHandler::setFailed, retainedRef(this));
             ContentDecryptionModuleResult* result = new SetContentDecryptionModuleResult(successCallback.release(), failureCallback.release());
             m_element->webMediaPlayer()->setContentDecryptionModule(m_newMediaKeys->contentDecryptionModule(), result->result());
 
             // Don't do anything more until |result| is resolved (or rejected).
             return;
         }
     }
 
     // MediaKeys doesn't need to be set on the player, so continue on.
     finish();
@@ skipping 197 matching lines @@
 }
 
 DEFINE_TRACE(HTMLMediaElementEncryptedMedia)
 {
     visitor->trace(m_mediaElement);
     visitor->trace(m_mediaKeys);
     Supplement<HTMLMediaElement>::trace(visitor);
 }
 
 } // namespace blink