Require an explicit ServiceName annotation for interfaces in C++.

mojo/services/native_support/interfaces/process.mojom

 // 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.
 
 [DartPackage="mojo_services"]
 module native_support;
 
 import "files/interfaces/file.mojom";
 import "files/interfaces/types.mojom";
 
 // Interface for dealing with (e.g., starting) "native" processes.
+[ServiceName="native_support::Process"]
 interface Process {
   // Spawns a process, optionally redirecting stdin/stdout/stderr from/to the
   // corresponding |mojo.files.File| (if null, redirects from/to /dev/null).
   // |path| is the path to the binary to execute; |argv| is the argv to give to
   // the process (if null, it just takes |argv[0]| to be |path| with no other
   // arguments); |envp| is the environment to give to the process, consisting of
   // an array of "strings" of the form "NAME=value" (if null, simply inherits
   // the environment from the parent, whatever that is).
   // TODO(vtl): This should really take an array of |mojo.files.File|s (or maybe
   // two, one for input and the other for output), corresponding to FDs, but the
@@ skipping 34 matching lines @@
   // Kill the process with the given signal (note: does not wait). |signal|
   // should be nonnegative. This is not valid after a successful call to
   // |Wait()|.
   // TODO(vtl): Add constants for signals. (For standard POSIX signals, the
   // values should be the same as the POSIX-specified values, so using POSIX
   // macros for the values should always be OK.)
   Kill(int32 signal) => (mojo.files.Error error);
 
   // TODO(vtl): Add a "Detach()"?
 };