Wrap GCed raw pointer parameters of WTF::bind with Persistent

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

Index: third_party/WebKit/Source/modules/encryptedmedia/HTMLMediaElementEncryptedMedia.cpp
diff --git a/third_party/WebKit/Source/modules/encryptedmedia/HTMLMediaElementEncryptedMedia.cpp b/third_party/WebKit/Source/modules/encryptedmedia/HTMLMediaElementEncryptedMedia.cpp
index fae74aa1f5e34fe68f86bfdac0af1c4d1eb9725e..8623477a3c20712848266c9422a65805ba6eed3a 100644
--- a/third_party/WebKit/Source/modules/encryptedmedia/HTMLMediaElementEncryptedMedia.cpp
+++ b/third_party/WebKit/Source/modules/encryptedmedia/HTMLMediaElementEncryptedMedia.cpp
@@ -168,8 +168,8 @@ void SetMediaKeysHandler::clearExistingMediaKeys()
             //       attribute to decrypt media data and remove the association
             //       with the media element.
             // (All 3 steps handled as needed in Chromium.)
-            std::unique_ptr<SuccessCallback> successCallback = bind(&SetMediaKeysHandler::setNewMediaKeys, this);
-            std::unique_ptr<FailureCallback> failureCallback = bind(&SetMediaKeysHandler::clearFailed, this);
+            std::unique_ptr<SuccessCallback> successCallback = bind(&SetMediaKeysHandler::setNewMediaKeys, wrapPersistent(this));
+            std::unique_ptr<FailureCallback> failureCallback = bind(&SetMediaKeysHandler::clearFailed, wrapPersistent(this));
             ContentDecryptionModuleResult* result = new SetContentDecryptionModuleResult(std::move(successCallback), std::move(failureCallback));
             mediaPlayer->setContentDecryptionModule(nullptr, result->result());
 
@@ -196,8 +196,8 @@ void SetMediaKeysHandler::setNewMediaKeys()
         //       algorithm on the media element.
         //       (Handled in Chromium).
         if (m_element->webMediaPlayer()) {
-            std::unique_ptr<SuccessCallback> successCallback = bind(&SetMediaKeysHandler::finish, this);
-            std::unique_ptr<FailureCallback> failureCallback = bind(&SetMediaKeysHandler::setFailed, this);
+            std::unique_ptr<SuccessCallback> successCallback = bind(&SetMediaKeysHandler::finish, wrapPersistent(this));
+            std::unique_ptr<FailureCallback> failureCallback = bind(&SetMediaKeysHandler::setFailed, wrapPersistent(this));
             ContentDecryptionModuleResult* result = new SetContentDecryptionModuleResult(std::move(successCallback), std::move(failureCallback));
             m_element->webMediaPlayer()->setContentDecryptionModule(m_newMediaKeys->contentDecryptionModule(), result->result());