Implement extension:// protocol.

chrome/browser/extensions/extension_protocol.h

Index: chrome/browser/extensions/extension_protocol.h
diff --git a/chrome/browser/extensions/extension_protocol.h b/chrome/browser/extensions/extension_protocol.h
new file mode 100644
index 0000000000000000000000000000000000000000..54254db31edebea5fe6df99de3a67e02acceeb7e
--- /dev/null
+++ b/chrome/browser/extensions/extension_protocol.h
@@ -0,0 +1,14 @@
+// Copyright (c) 2006-2008 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.
+
+#include "base/file_path.h"
+
+// Gets a FilePath for a resource inside an extension. |extension_path| is the
+// full path to the extension directory. |resource_path| is the path to the
+// resource from the extension root, including the leading '/'.
+FilePath GetPathForExtensionResource(const FilePath& extension_path,
+                                     const std::string& resource_path);
+
+// Registers support for the extension URL scheme.
+void RegisterExtensionProtocol();