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 c4f479c686e88321583ce11959cb0d8e8f2ecdfc..9532e13bb9326ea2138377e9a01d1f86d0b6e1e4 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)