IWYU fixes for url/...

url/origin.cc

 // Copyright 2015 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 "url/origin.h"
 
 #include <stdint.h>
-#include <string.h>
 
-#include "base/logging.h"
-#include "base/strings/string_number_conversions.h"
 #include "url/gurl.h"
-#include "url/url_canon.h"
-#include "url/url_canon_stdstring.h"
 #include "url/url_constants.h"
-#include "url/url_util.h"
 
 namespace url {
 
 Origin::Origin() : unique_(true) {
 }
 
 Origin::Origin(const GURL& url) : unique_(true) {
   if (!url.is_valid() || (!url.IsStandard() && !url.SchemeIsBlob()))
     return;
 
@@ skipping 47 matching lines @@
 
 bool Origin::operator<(const Origin& other) const {
   return tuple_ < other.tuple_;
 }
 
 std::ostream& operator<<(std::ostream& out, const url::Origin& origin) {
   return out << origin.Serialize();
 }
 
 }  // namespace url