Remove <iostream> where possible.

chrome/test/v8_unit_test.cc

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include <iostream>
-
 #include "base/string_util.h"
 #include "chrome/test/v8_unit_test.h"
 
 void V8UnitTest::SetUp() {
   v8::Handle<v8::ObjectTemplate> global = v8::ObjectTemplate::New();
   global->Set(v8::String::New("log"),
               v8::FunctionTemplate::New(&V8UnitTest::Log));
   context_ = v8::Context::New(NULL, global);
 }
 
@@ skipping 74 matching lines @@
       first = false;
     } else {
       message += " ";
     }
     v8::String::Utf8Value str(args[i]);
     message += *str;
   }
   std::cout << message << "\n";
   return v8::Undefined();
 }