Change Mojo URLs to structured names

mojo/shell/public/cpp/names.h

+// 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.
+
+#ifndef MOJO_SHELL_PUBLIC_CPP_NAMES_H_
+#define MOJO_SHELL_PUBLIC_CPP_NAMES_H_
+
+#include <string>
+
+namespace mojo {
+
+// Mojo services and applications are identified by structured "names", of the
+// form:
+//
+//    type:path.
+//
+// The type field tells the shell how to load the application. Two types are
+// currently recognized:
+//
+//  mojo
+//   Represents an application packaged as a .mojo, launched from the
+//   NativeRunner launch path. .mojo files are assumed to live alongside the
+//   shell executable at a path matching <path>/<path>.mojo. .mojo applications
+//   have a MojoMain() entrypoint that receives a handle to a ShellClientRequest
+//   that must be bound to enable further communication with the shell.
+//
+//  exe
+//   Represents a native executable on the host platform, expected to live
+//   alongside the shell executable. Executables launched via this mechanism are
+//   passed a handle to the shell on the command line and are expected to bind
+//   a ChildController via which they will receive a ShellClientRequest enabling
+//   further communication with the shell. The path component contains the
+//   executable name, minus any platform-specific extension.
+//
+// Other types may be supplied but are not recognized by any of the
+// NativeRunners, and as such custom loaders must be specified for such names.
+//
+// Any name type may serve as an alias for any other name type. Aliasing is
+// resolved implicitly by the Shell.
+
+// Returns true if the name is a valid form, i.e. type:path. path cannot start
+// with a "//" sequence. These are _not_ urls.
+bool IsValidName(const std::string& name);
+
+// Get the type component of the specified name.
+std::string GetNameType(const std::string& name);
+
+// Get the path component of the specified name.
+std::string GetNamePath(const std::string& name);
+
+}  // namespace mojo
+
+#endif  // MOJO_SHELL_PUBLIC_CPP_NAMES_H_