Separate mojo/shell into a runner and the application manager (shell)

mojo/runner/child_process.h

Index: mojo/runner/child_process.h
diff --git a/mojo/shell/child_process.h b/mojo/runner/child_process.h
similarity index 72%
rename from mojo/shell/child_process.h
rename to mojo/runner/child_process.h
index c0cc431aeb6929bb009adb61d3991f4cc2f1e5e4..1d4badfc502874fbdd366d493d38bd2561c4899b 100644
--- a/mojo/shell/child_process.h
+++ b/mojo/runner/child_process.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef MOJO_SHELL_CHILD_PROCESS_H_
-#define MOJO_SHELL_CHILD_PROCESS_H_
+#ifndef MOJO_RUNNER_CHILD_PROCESS_H_
+#define MOJO_RUNNER_CHILD_PROCESS_H_
 
 namespace mojo {
 namespace shell {
@@ -14,4 +14,4 @@ int ChildProcessMain();
 }  // namespace shell
 }  // namespace mojo
 
-#endif  // MOJO_SHELL_CHILD_PROCESS_H_
+#endif  // MOJO_RUNNER_CHILD_PROCESS_H_