Revert of Mustash: Move GURL ParamTraits to url/ipc

url/ipc/url_param_traits.cc

-// Copyright (c) 2016 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/ipc/url_param_traits.h"
-
-#include "url/gurl.h"
-
-namespace IPC {
-
-void ParamTraits<GURL>::Write(base::Pickle* m, const GURL& p) {
-  if (p.possibly_invalid_spec().length() > url::kMaxURLChars) {
-    m->WriteString(std::string());
-    return;
-  }
-
-  // Beware of print-parse inconsistency which would change an invalid
-  // URL into a valid one. Ideally, the message would contain this flag
-  // so that the read side could make the check, but performing it here
-  // avoids changing the on-the-wire representation of such a fundamental
-  // type as GURL. See https://crbug.com/166486 for additional work in
-  // this area.
-  if (!p.is_valid()) {
-    m->WriteString(std::string());
-    return;
-  }
-
-  m->WriteString(p.possibly_invalid_spec());
-  // TODO(brettw) bug 684583: Add encoding for query params.
-}
-
-bool ParamTraits<GURL>::Read(const base::Pickle* m,
-                             base::PickleIterator* iter,
-                             GURL* p) {
-  std::string s;
-  if (!iter->ReadString(&s) || s.length() > url::kMaxURLChars) {
-    *p = GURL();
-    return false;
-  }
-  *p = GURL(s);
-  if (!s.empty() && !p->is_valid()) {
-    *p = GURL();
-    return false;
-  }
-  return true;
-}
-
-void ParamTraits<GURL>::Log(const GURL& p, std::string* l) {
-  l->append(p.spec());
-}
-
-}  // namespace IPC