Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/modules/audio_output_devices/HTMLMediaElementAudioOutputDevice.cpp

 // Copyright 2015 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/audio_output_devices/HTMLMediaElementAudioOutputDevice.h"
 
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "core/dom/ExecutionContext.h"
 #include "modules/audio_output_devices/AudioOutputDeviceClient.h"
@@ skipping 10 matching lines @@
     static SetSinkIdResolver* create(ScriptState*, HTMLMediaElement&, const String& sinkId);
     ~SetSinkIdResolver() override = default;
     void startAsync();
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
     SetSinkIdResolver(ScriptState*, HTMLMediaElement&, const String& sinkId);
     void timerFired(Timer<SetSinkIdResolver>*);
 
-    RefPtrWillBeMember<HTMLMediaElement> m_element;
+    Member<HTMLMediaElement> m_element;
     String m_sinkId;
     Timer<SetSinkIdResolver> m_timer;
 };
 
 SetSinkIdResolver* SetSinkIdResolver::create(ScriptState* scriptState, HTMLMediaElement& element, const String& sinkId)
 {
     SetSinkIdResolver* resolver = new SetSinkIdResolver(scriptState, element, sinkId);
     resolver->suspendIfNeeded();
     resolver->keepAliveWhilePending();
     return resolver;
@@ skipping 68 matching lines @@
     return promise;
 }
 
 const char* HTMLMediaElementAudioOutputDevice::supplementName()
 {
     return "HTMLMediaElementAudioOutputDevice";
 }
 
 HTMLMediaElementAudioOutputDevice& HTMLMediaElementAudioOutputDevice::from(HTMLMediaElement& element)
 {
-    HTMLMediaElementAudioOutputDevice* supplement = static_cast<HTMLMediaElementAudioOutputDevice*>(WillBeHeapSupplement<HTMLMediaElement>::from(element, supplementName()));
+    HTMLMediaElementAudioOutputDevice* supplement = static_cast<HTMLMediaElementAudioOutputDevice*>(HeapSupplement<HTMLMediaElement>::from(element, supplementName()));
     if (!supplement) {
         supplement = new HTMLMediaElementAudioOutputDevice();
         provideTo(element, supplementName(), adoptPtrWillBeNoop(supplement));
     }
     return *supplement;
 }
 
 DEFINE_TRACE(HTMLMediaElementAudioOutputDevice)
 {
-    WillBeHeapSupplement<HTMLMediaElement>::trace(visitor);
+    HeapSupplement<HTMLMediaElement>::trace(visitor);
 }
 
 } // namespace blink