Stub out initial NavigationController browser implementation

content/browser/nav_controller/nav_controller_context.h

+// 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_NAV_CONTROLLER_NAV_CONTROLLER_CONTEXT_H_
+#define CONTENT_BROWSER_NAV_CONTROLLER_NAV_CONTROLLER_CONTEXT_H_
+
+#include "base/files/file_path.h"

[jam, 2013/09/13 22:44:41]

nit: no need

+#include "base/memory/ref_counted.h"
+
+// TODO(alecflett): Promote to an interface and put in content/public
+// when this needs to be accessed from chrome/

[jam, 2013/09/13 22:44:41]

nit: remove this for now. if you need that in the future, it'll happen

+
+namespace base {
+class FilePath;
+}
+
+namespace quota {
+class QuotaManagerProxy;
+}
+
+namespace content {
+
+// This class manages metadata associated with all navigation
+// controllers, including:
+// - persistent storage of pattern -> controller scripts
+// - initialization and initial installation of controllers
+// - dispatching of non-fetch events to controllers
+class NavControllerContext
+    : public base::RefCountedThreadSafe<NavControllerContext> {

[jam, 2013/09/13 22:44:41]

why is this refcounted?

+ public:
+  // This is owned by the StoragePartition, which will supply it with
+  // the local path on disk.
+  NavControllerContext(const base::FilePath& path,
+                       quota::QuotaManagerProxy* quota_manager_proxy);
+
+ private:
+  friend class base::RefCountedThreadSafe<NavControllerContext>;
+  ~NavControllerContext();
+
+  scoped_refptr<quota::QuotaManagerProxy> quota_manager_proxy_;
+  base::FilePath path_;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_NAV_CONTROLLER_NAV_CONTROLLER_CONTEXT_H_