Remove use of <iostream> where unnecessary.

chrome/browser/intents/web_intent_data.cc

 // Copyright (c) 2011 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 "base/utf_string_conversions.h"
 #include "chrome/browser/intents/web_intent_data.h"
-#include <iostream>
+#include <ostream>
 
 WebIntentData::WebIntentData() {}
 
 WebIntentData::~WebIntentData() {}
 
 bool WebIntentData::operator==(const WebIntentData& other) const {
   return (service_url == other.service_url &&
           action == other.action &&
           type == other.type &&
           title == other.title);
 }
 
 std::ostream& operator<<(::std::ostream& os,
                          const WebIntentData& intent) {
   return os <<
          "{" << intent.service_url <<
          ", " << UTF16ToUTF8(intent.action) <<
          ", " << UTF16ToUTF8(intent.type) <<
          ", " << UTF16ToUTF8(intent.title) <<
          "}";
 }