Change Mojo URLs to structured names

mojo/shell/public/cpp/lib/names.cc

Index: mojo/shell/public/cpp/lib/names.cc
diff --git a/mojo/shell/public/cpp/lib/names.cc b/mojo/shell/public/cpp/lib/names.cc
new file mode 100644
index 0000000000000000000000000000000000000000..e669229d88b5b29df301509d43862bd659ee0887
--- /dev/null
+++ b/mojo/shell/public/cpp/lib/names.cc
@@ -0,0 +1,43 @@
+// Copyright 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 "mojo/shell/public/cpp/names.h"
+
+#include "base/strings/string_split.h"
+#include "base/strings/string_util.h"
+
+namespace mojo {
+
+bool IsValidName(const std::string& name) {
+  std::vector<std::string> parts =
+      base::SplitString(name, ":", base::KEEP_WHITESPACE,
+                        base::SPLIT_WANT_ALL);
+  if (parts.size() != 2)
+    return false;
+
+  if (parts.front().empty())
+    return false;
+
+  const std::string& path = parts.back();
+  return !path.empty() &&
+      !base::StartsWith(path, "//", base::CompareCase::INSENSITIVE_ASCII);
+}
+
+std::string GetNameType(const std::string& name) {
+  std::vector<std::string> parts =
+      base::SplitString(name, ":", base::KEEP_WHITESPACE,
+                        base::SPLIT_WANT_ALL);
+  DCHECK(2 == parts.size());
+  return parts.front();
+}
+
+std::string GetNamePath(const std::string& name) {
+  std::vector<std::string> parts =
+      base::SplitString(name, ":", base::KEEP_WHITESPACE,
+                        base::SPLIT_WANT_ALL);
+  DCHECK(2 == parts.size());
+  return parts.back();
+}
+
+}  // namespace mojo