Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/platform/mhtml/MHTMLArchive.h

Index: third_party/WebKit/Source/platform/mhtml/MHTMLArchive.h
diff --git a/third_party/WebKit/Source/platform/mhtml/MHTMLArchive.h b/third_party/WebKit/Source/platform/mhtml/MHTMLArchive.h
index 2ce0ab5a105b1d6d9f54999750bc5632599d1835..d0bca90f6206792b44a8b26b8f788323f3e6511c 100644
--- a/third_party/WebKit/Source/platform/mhtml/MHTMLArchive.h
+++ b/third_party/WebKit/Source/platform/mhtml/MHTMLArchive.h
@@ -47,9 +47,9 @@ class SharedBuffer;
 
 struct SerializedResource;
 
-class PLATFORM_EXPORT MHTMLArchive final : public RefCountedWillBeGarbageCollectedFinalized<MHTMLArchive> {
+class PLATFORM_EXPORT MHTMLArchive final : public GarbageCollectedFinalized<MHTMLArchive> {
 public:
-    static PassRefPtrWillBeRawPtr<MHTMLArchive> create(const KURL&, SharedBuffer*);
+    static RawPtr<MHTMLArchive> create(const KURL&, SharedBuffer*);
     ~MHTMLArchive();
 
     // Binary encoding results in smaller MHTML files but they might not work in other browsers.
@@ -90,7 +90,7 @@ public:
         const String& boundary,
         SharedBuffer& outputBuffer);
 
-    typedef WillBeHeapHashMap<String, RefPtrWillBeMember<ArchiveResource>> SubArchiveResources;
+    typedef HeapHashMap<String, Member<ArchiveResource>> SubArchiveResources;
 
     ArchiveResource* mainResource() { return m_mainResource.get(); }
     ArchiveResource* subresourceForURL(const KURL&) const;
@@ -100,10 +100,10 @@ public:
 private:
     MHTMLArchive();
 
-    void setMainResource(PassRefPtrWillBeRawPtr<ArchiveResource>);
+    void setMainResource(RawPtr<ArchiveResource>);
     void addSubresource(ArchiveResource*);
 
-    RefPtrWillBeMember<ArchiveResource> m_mainResource;
+    Member<ArchiveResource> m_mainResource;
     SubArchiveResources m_subresources;
 };