Moved ExternalExtensionLoaders/Providers into extensions namespace

chrome/browser/extensions/external_registry_loader_win.h

Index: chrome/browser/extensions/external_registry_loader_win.h
diff --git a/chrome/browser/extensions/external_registry_loader_win.h b/chrome/browser/extensions/external_registry_loader_win.h
new file mode 100644
index 0000000000000000000000000000000000000000..fa701b693648ff3cc1be25e8a15db5bb175ff387
--- /dev/null
+++ b/chrome/browser/extensions/external_registry_loader_win.h
@@ -0,0 +1,32 @@
+// Copyright (c) 2012 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 CHROME_BROWSER_EXTENSIONS_EXTERNAL_REGISTRY_LOADER_WIN_H_
+#define CHROME_BROWSER_EXTENSIONS_EXTERNAL_REGISTRY_LOADER_WIN_H_
+
+#include "base/compiler_specific.h"
+#include "chrome/browser/extensions/external_loader.h"
+
+namespace extensions {
+
+class ExternalRegistryLoader : public ExternalLoader {
+ public:
+  ExternalRegistryLoader() {}
+
+ protected:
+  virtual void StartLoading() OVERRIDE;
+
+ private:
+  friend class base::RefCountedThreadSafe<ExternalLoader>;
+
+  virtual ~ExternalRegistryLoader() {}
+
+  void LoadOnFileThread();
+
+  DISALLOW_COPY_AND_ASSIGN(ExternalRegistryLoader);
+};
+
+}  // namespace extensions
+
+#endif  // CHROME_BROWSER_EXTENSIONS_EXTERNAL_REGISTRY_LOADER_WIN_H_