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diff --git a/content/browser/frame_host/navigator.h b/content/browser/frame_host/navigator.h
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+++ b/content/browser/frame_host/navigator.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 CONTENT_BROWSER_FRAME_HOST_NAVIGATOR_H_
+#define CONTENT_BROWSER_FRAME_HOST_NAVIGATOR_H_
+
+#include "base/memory/ref_counted.h"
+#include "content/common/content_export.h"
+
+namespace content {
+
+class NavigationControllerImpl;
+class NavigatorDelegate;
+
+// This class is responsible for performing navigations in a node of the
+// FrameTree. Its lifetime is bound to all FrameTreeNode objects that are
+// using it and will be released once all nodes that use it are freed.
+// The Navigator is bound to a single frame tree and cannot be used by multiple
+// instances of FrameTree.
+// TODO(nasko): Move all navigation methods, such as didStartProvisionalLoad
+// from WebContentsImpl to this class.
+class CONTENT_EXPORT Navigator : public base::RefCounted<Navigator> {
+ public:
+  Navigator(NavigationControllerImpl* nav_controller,
+            NavigatorDelegate* delegate);
+
+  NavigationControllerImpl* controller() {
+    return controller_;
+  }
+
+  NavigatorDelegate* delegate() {
+    return delegate_;
+  }
+
+ private:
+  friend class base::RefCounted<Navigator>;
+  virtual ~Navigator() {}
+
+  // The NavigationController that will keep track of session history for all
+  // RenderFrameHost objects using this Navigator.
+  // TODO(nasko): Move ownership of the NavigationController from
+  // WebContentsImpl to this class.
+  NavigationControllerImpl* controller_;
+
+  // Used to notify the object embedding this Navigator about navigation
+  // events. Can be NULL in tests.
+  NavigatorDelegate* delegate_;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_FRAME_HOST_NAVIGATOR_H_