Remove WTF::static_pointer_cast functions.

third_party/WebKit/Source/wtf/RefPtr.h

 /*
  *  Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2013 Apple Inc. All rights reserved.
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Library General Public
  *  License as published by the Free Software Foundation; either
  *  version 2 of the License, or (at your option) any later version.
  *
  *  This library is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 148 matching lines @@
 template <typename T> inline bool operator!=(const RefPtr<T>& a, std::nullptr_t)
 {
     return a.get();
 }
 
 template <typename T> inline bool operator!=(std::nullptr_t, const RefPtr<T>& b)
 {
     return b.get();
 }
 
-template <typename T, typename U> inline RefPtr<T> static_pointer_cast(const RefPtr<U>& p)
-{
-    return RefPtr<T>(static_cast<T*>(p.get()));
-}
-
 template <typename T> inline T* getPtr(const RefPtr<T>& p)
 {
     return p.get();
 }
 
 template <typename T> class RefPtrValuePeeker {
     DISALLOW_NEW();
 public:
     ALWAYS_INLINE RefPtrValuePeeker(T* p): m_ptr(p) {}
     ALWAYS_INLINE RefPtrValuePeeker(std::nullptr_t): m_ptr(nullptr) {}
     template <typename U> RefPtrValuePeeker(const RefPtr<U>& p): m_ptr(p.get()) {}
     template <typename U> RefPtrValuePeeker(const PassRefPtr<U>& p): m_ptr(p.get()) {}
 
     ALWAYS_INLINE operator T*() const { return m_ptr; }
 private:
     T* m_ptr;
 };
 
 } // namespace WTF
 
 using WTF::RefPtr;
-using WTF::static_pointer_cast;
 
 #endif // WTF_RefPtr_h