Dart: Adds a program to create snapshots of Mojo apps.

mojo/dart/dart_snapshotter/switches.h

Index: mojo/dart/dart_snapshotter/switches.h
diff --git a/mojo/dart/dart_snapshotter/switches.h b/mojo/dart/dart_snapshotter/switches.h
new file mode 100644
index 0000000000000000000000000000000000000000..809bbca7086b17aa944cd2bbdcd496e1ceb35b1e
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+++ b/mojo/dart/dart_snapshotter/switches.h
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+// 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.
+
+#ifndef MOJO_DART_DART_SNAPSHOTTER_SWITCHES_H_
+#define MOJO_DART_DART_SNAPSHOTTER_SWITCHES_H_
+
+namespace switches {
+
+extern const char kHelp[];
+extern const char kPackageRoot[];
+extern const char kSnapshot[];
+
+}  // namespace switches
+
+#endif  // MOJO_DART_DART_SNAPSHOTTER_SWITCHES_H_