Add GetUsbKeyCode dev interface for Pepper key events

webkit/plugins/ppapi/event_conversion.cc

Index: webkit/plugins/ppapi/event_conversion.cc
diff --git a/webkit/plugins/ppapi/event_conversion.cc b/webkit/plugins/ppapi/event_conversion.cc
index d78ad3916a76032e6e2f0a6811b127bfe40c3348..a4d0501c6a0b89874d6ac84cc4945b8472a97bf8 100644
--- a/webkit/plugins/ppapi/event_conversion.cc
+++ b/webkit/plugins/ppapi/event_conversion.cc
@@ -75,12 +75,18 @@ InputEventData GetEventWithCommonFieldsAndType(const WebInputEvent& web_event) {
 }
 
 void AppendKeyEvent(const WebInputEvent& event,
+                    bool lowlevel_keyboard_events,
                     std::vector<InputEventData>* result_events) {
   const WebKeyboardEvent& key_event =
       static_cast<const WebKeyboardEvent&>(event);
   InputEventData result = GetEventWithCommonFieldsAndType(event);
   result.event_modifiers = key_event.modifiers;
-  result.key_code = key_event.windowsKeyCode;
+  if (lowlevel_keyboard_events) {
+    // TODO(garykac) Convert native key code to USB scancodes.
+    result.key_code = key_event.nativeKeyCode;
+  } else {
+    result.key_code = key_event.windowsKeyCode;
+  }
   result_events->push_back(result);
 }
 
@@ -339,6 +345,7 @@ void GetKeyCode(const std::string& char_text,
 }  // namespace
 
 void CreateInputEventData(const WebInputEvent& event,
+                          bool lowlevel_keyboard_events,
                           std::vector<InputEventData>* result) {
   result->clear();
 
@@ -357,7 +364,7 @@ void CreateInputEventData(const WebInputEvent& event,
     case WebInputEvent::RawKeyDown:
     case WebInputEvent::KeyDown:
     case WebInputEvent::KeyUp:
-      AppendKeyEvent(event, result);
+      AppendKeyEvent(event, lowlevel_keyboard_events, result);
       break;
     case WebInputEvent::Char:
       AppendCharEvent(event, result);