Mustash: Move GURL ParamTraits to url/ipc

url/ipc/url_param_traits.cc

Index: url/ipc/url_param_traits.cc
diff --git a/url/ipc/url_param_traits.cc b/url/ipc/url_param_traits.cc
new file mode 100644
index 0000000000000000000000000000000000000000..e40ae8f9a3c9ccc4558cf6fb559f0342ebec545d
--- /dev/null
+++ b/url/ipc/url_param_traits.cc
@@ -0,0 +1,52 @@
+// 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