Remove static initializer from BigIntegerUtils.cc

third_party/bigint/BigIntegerUtils.hh

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code by Matt McCutchen, see the LICENSE file.
 
 #ifndef BIGINTEGERUTILS_H
 #define BIGINTEGERUTILS_H
 
 #include "BigInteger.hh"
 #include <string>
-#include <iostream>
+#include <ostream>
 
 /* This file provides:
  * - Convenient std::string <-> BigUnsigned/BigInteger conversion routines
  * - std::ostream << operators for BigUnsigned/BigInteger */
 
 // std::string conversion routines.  Base 10 only.
 std::string bigUnsignedToString(const BigUnsigned &x);
 std::string bigIntegerToString(const BigInteger &x);
 BigUnsigned stringToBigUnsigned(const std::string &s);
 BigInteger stringToBigInteger(const std::string &s);
@@ skipping 46 matching lines @@
         }
 
         // Create the BigInteger.
         BigInteger x(blocks, numBlocks, sign);
 
         delete [] blocks;
         return x;
 }
 
 #endif