Calc USB scancodes for key events (linux only for now)

webkit/plugins/ppapi/usb_key_code_conversion.cc

Index: webkit/plugins/ppapi/usb_key_code_conversion.cc
diff --git a/webkit/plugins/ppapi/usb_key_code_conversion.cc b/webkit/plugins/ppapi/usb_key_code_conversion.cc
new file mode 100644
index 0000000000000000000000000000000000000000..dc2cc4158e83f9d1ef9f71a0f985addc2b972e0f
--- /dev/null
+++ b/webkit/plugins/ppapi/usb_key_code_conversion.cc
@@ -0,0 +1,24 @@
+// 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.
+
+#include "webkit/plugins/ppapi/usb_key_code_conversion.h"
+
+#include "build/build_config.h"
+
+using WebKit::WebKeyboardEvent;
+
+namespace webkit {
+namespace ppapi {
+
+// TODO(garykac): Implement for Windows and Mac.
+#if !defined(OS_LINUX)
+
+uint32_t UsbKeyCodeForKeyboardEvent(const WebKeyboardEvent& key_event) {
+  return 0;
+}
+
+#endif
+
+}  // namespace ppapi
+}  // namespace webkit