refactor: rename the atom directory to shell

shell/browser/atom_navigation_throttle.h

@@ -0,0 +1,27 @@
+// Copyright (c) 2018 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#ifndef ATOM_BROWSER_ATOM_NAVIGATION_THROTTLE_H_
+#define ATOM_BROWSER_ATOM_NAVIGATION_THROTTLE_H_
+
+#include "content/public/browser/navigation_throttle.h"
+
+namespace atom {
+
+class AtomNavigationThrottle : public content::NavigationThrottle {
+ public:
+  explicit AtomNavigationThrottle(content::NavigationHandle* handle);
+  ~AtomNavigationThrottle() override;
+
+  AtomNavigationThrottle::ThrottleCheckResult WillRedirectRequest() override;
+
+  const char* GetNameForLogging() override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(AtomNavigationThrottle);
+};
+
+}  // namespace atom
+
+#endif  // ATOM_BROWSER_ATOM_NAVIGATION_THROTTLE_H_