Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/modules/mediasession/HTMLMediaElementMediaSession.cpp

Index: third_party/WebKit/Source/modules/mediasession/HTMLMediaElementMediaSession.cpp
diff --git a/third_party/WebKit/Source/modules/mediasession/HTMLMediaElementMediaSession.cpp b/third_party/WebKit/Source/modules/mediasession/HTMLMediaElementMediaSession.cpp
index 7d30d2f0c6fda5824c8df678e374785c00beac4f..8f1b0c8e63da2ec18445824f36604e689bd47345 100644
--- a/third_party/WebKit/Source/modules/mediasession/HTMLMediaElementMediaSession.cpp
+++ b/third_party/WebKit/Source/modules/mediasession/HTMLMediaElementMediaSession.cpp
@@ -36,20 +36,20 @@ HTMLMediaElementMediaSession& HTMLMediaElementMediaSession::from(HTMLMediaElemen
     HTMLMediaElementMediaSession* supplement = fromIfExists(element);
     if (!supplement) {
         supplement = new HTMLMediaElementMediaSession();
-        provideTo(element, supplementName(), adoptPtrWillBeNoop(supplement));
+        provideTo(element, supplementName(), (supplement));
     }
     return *supplement;
 }
 
 HTMLMediaElementMediaSession* HTMLMediaElementMediaSession::fromIfExists(HTMLMediaElement& element)
 {
-    return static_cast<HTMLMediaElementMediaSession*>(WillBeHeapSupplement<HTMLMediaElement>::from(element, supplementName()));
+    return static_cast<HTMLMediaElementMediaSession*>(HeapSupplement<HTMLMediaElement>::from(element, supplementName()));
 }
 
 DEFINE_TRACE(HTMLMediaElementMediaSession)
 {
     visitor->trace(m_session);
-    WillBeHeapSupplement<HTMLMediaElement>::trace(visitor);
+    HeapSupplement<HTMLMediaElement>::trace(visitor);
 }
 
 } // namespace blink