Get mojo_shell building inside chromium checkout.

mojo/shell/switches.h

Index: mojo/shell/switches.h
diff --git a/mojo/shell/switches.h b/mojo/shell/switches.h
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+++ b/mojo/shell/switches.h
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+// Copyright 2013 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 SHELL_SWITCHES_H_
+#define SHELL_SWITCHES_H_
+
+#include <set>
+#include <string>
+
+namespace switches {
+
+// All switches in alphabetical order. The switches should be documented
+// alongside the definition of their values in the .cc file and, as needed,
+// in mojo_main's Usage() function.
+extern const char kArgsFor[];
+extern const char kChildProcess[];
+extern const char kContentHandlers[];
+extern const char kDisableCache[];
+extern const char kDontDeleteOnDownload[];
+extern const char kEnableExternalApplications[];
+extern const char kEnableMultiprocess[];
+extern const char kForceInProcess[];
+extern const char kHelp[];
+extern const char kMapOrigin[];
+extern const char kOrigin[];
+extern const char kPredictableAppFilenames[];
+extern const char kTraceStartup[];
+extern const char kURLMappings[];
+
+extern const std::set<std::string> GetAllSwitches();
+
+}  // namespace switches
+
+#endif  // SHELL_SWITCHES_H_