Oilpan: Remove most WillBe types from the code base

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

Index: third_party/WebKit/Source/modules/encryptedmedia/MediaKeySession.cpp
diff --git a/third_party/WebKit/Source/modules/encryptedmedia/MediaKeySession.cpp b/third_party/WebKit/Source/modules/encryptedmedia/MediaKeySession.cpp
index 560a1dbfa64b2d291aa318c8b5acb2543e4e4b70..cebd2274397d54c3858da5b284657e49cc720f4d 100644
--- a/third_party/WebKit/Source/modules/encryptedmedia/MediaKeySession.cpp
+++ b/third_party/WebKit/Source/modules/encryptedmedia/MediaKeySession.cpp
@@ -302,7 +302,7 @@ private:
 
 MediaKeySession* MediaKeySession::create(ScriptState* scriptState, MediaKeys* mediaKeys, WebEncryptedMediaSessionType sessionType)
 {
-    RefPtrWillBeRawPtr<MediaKeySession> session = new MediaKeySession(scriptState, mediaKeys, sessionType);
+    RawPtr<MediaKeySession> session = new MediaKeySession(scriptState, mediaKeys, sessionType);
     session->suspendIfNeeded();
     return session.get();
 }
@@ -801,7 +801,7 @@ void MediaKeySession::message(MessageType messageType, const unsigned char* mess
     }
     init.setMessage(DOMArrayBuffer::create(static_cast<const void*>(message), messageLength));
 
-    RefPtrWillBeRawPtr<MediaKeyMessageEvent> event = MediaKeyMessageEvent::create(EventTypeNames::message, init);
+    RawPtr<MediaKeyMessageEvent> event = MediaKeyMessageEvent::create(EventTypeNames::message, init);
     event->setTarget(this);
     m_asyncEventQueue->enqueueEvent(event.release());
 }
@@ -869,7 +869,7 @@ void MediaKeySession::keysStatusesChange(const WebVector<WebEncryptedMediaKeyInf
 
     // 5. Queue a task to fire a simple event named keystatuseschange
     //    at the session.
-    RefPtrWillBeRawPtr<Event> event = Event::create(EventTypeNames::keystatuseschange);
+    RawPtr<Event> event = Event::create(EventTypeNames::keystatuseschange);
     event->setTarget(this);
     m_asyncEventQueue->enqueueEvent(event.release());