refactor: rename the atom directory to shell

shell/common/atom_command_line.h

@@ -0,0 +1,38 @@
+// Copyright (c) 2015 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#ifndef ATOM_COMMON_ATOM_COMMAND_LINE_H_
+#define ATOM_COMMON_ATOM_COMMAND_LINE_H_
+
+#include <string>
+#include <vector>
+
+#include "base/command_line.h"
+#include "base/macros.h"
+#include "build/build_config.h"
+
+namespace atom {
+
+// Singleton to remember the original "argc" and "argv".
+class AtomCommandLine {
+ public:
+  static const base::CommandLine::StringVector& argv() { return argv_; }
+
+  static void Init(int argc, base::CommandLine::CharType** argv);
+
+#if defined(OS_LINUX)
+  // On Linux the command line has to be read from base::CommandLine since
+  // it is using zygote.
+  static void InitializeFromCommandLine();
+#endif
+
+ private:
+  static base::CommandLine::StringVector argv_;
+
+  DISALLOW_IMPLICIT_CONSTRUCTORS(AtomCommandLine);
+};
+
+}  // namespace atom
+
+#endif  // ATOM_COMMON_ATOM_COMMAND_LINE_H_