Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/loader/PrerenderHandle.cpp

Index: third_party/WebKit/Source/core/loader/PrerenderHandle.cpp
diff --git a/third_party/WebKit/Source/core/loader/PrerenderHandle.cpp b/third_party/WebKit/Source/core/loader/PrerenderHandle.cpp
index a08c27cc8d33e68b3ebfe553338cb283be58f886..67a99dff38881b8495c110d46373c40d6344c879 100644
--- a/third_party/WebKit/Source/core/loader/PrerenderHandle.cpp
+++ b/third_party/WebKit/Source/core/loader/PrerenderHandle.cpp
@@ -41,7 +41,7 @@
 namespace blink {
 
 // static
-PassOwnPtrWillBeRawPtr<PrerenderHandle> PrerenderHandle::create(Document& document, PrerenderClient* client, const KURL& url, const unsigned prerenderRelTypes)
+RawPtr<PrerenderHandle> PrerenderHandle::create(Document& document, PrerenderClient* client, const KURL& url, const unsigned prerenderRelTypes)
 {
     // Prerenders are unlike requests in most ways (for instance, they pass down fragments, and they don't return data),
     // but they do have referrers.
@@ -55,7 +55,7 @@ PassOwnPtrWillBeRawPtr<PrerenderHandle> PrerenderHandle::create(Document& docume
         prerendererClient->willAddPrerender(prerender.get());
     prerender->add();
 
-    return adoptPtrWillBeNoop(new PrerenderHandle(document, prerender.release()));
+    return new PrerenderHandle(document, prerender.release());
 }
 
 PrerenderHandle::PrerenderHandle(Document& document, PassRefPtr<Prerender> prerender)