Add GetUsbKeyCode dev interface for Pepper key events

ppapi/thunk/ppb_input_event_thunk.cc

 // 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 "ppapi/c/pp_errors.h"
 #include "ppapi/thunk/thunk.h"
 #include "ppapi/thunk/enter.h"
 #include "ppapi/thunk/ppb_input_event_api.h"
 #include "ppapi/thunk/ppb_instance_api.h"
 #include "ppapi/thunk/resource_creation_api.h"
@@ skipping 253 matching lines @@
   return enter.object()->GetCharacterText();
 }
 
 const PPB_KeyboardInputEvent g_ppb_keyboard_input_event_thunk = {
   &CreateKeyboardInputEvent,
   &IsKeyboardInputEvent,
   &GetKeyCode,
   &GetCharacterText
 };
 
+// _Dev interface.
+
+PP_Bool SetUsbScanCode(PP_Resource key_event, uint32_t usb_scan_code) {
+  EnterInputEvent enter(key_event, true);
+  if (enter.failed())
+    return PP_FALSE;
+  return enter.object()->SetUsbScanCode(usb_scan_code);
+}
+
+uint32_t GetUsbScanCode(PP_Resource key_event) {
+  EnterInputEvent enter(key_event, true);
+  if (enter.failed())
+    return 0;
+  return enter.object()->GetUsbScanCode();
+}
+
+const PPB_KeyboardInputEvent_Dev g_ppb_keyboard_input_event_dev_thunk = {
+  &SetUsbScanCode,
+  &GetUsbScanCode,
+};
+
 // Composition -----------------------------------------------------------------
 
 PP_Bool IsIMEInputEvent(PP_Resource resource) {
   if (!IsInputEvent(resource))
     return PP_FALSE;  // Prevent warning log in GetType.
   PP_InputEvent_Type type = GetType(resource);
   return PP_FromBool(type == PP_INPUTEVENT_TYPE_IME_COMPOSITION_START ||
                      type == PP_INPUTEVENT_TYPE_IME_COMPOSITION_UPDATE ||
                      type == PP_INPUTEVENT_TYPE_IME_COMPOSITION_END ||
                      type == PP_INPUTEVENT_TYPE_IME_TEXT);
@@ skipping 56 matching lines @@
 }
 
 const PPB_MouseInputEvent_1_1* GetPPB_MouseInputEvent_1_1_Thunk() {
   return &g_ppb_mouse_input_event_1_1_thunk;
 }
 
 const PPB_KeyboardInputEvent_1_0* GetPPB_KeyboardInputEvent_1_0_Thunk() {
   return &g_ppb_keyboard_input_event_thunk;
 }
 
+const PPB_KeyboardInputEvent_Dev_0_1*
+    GetPPB_KeyboardInputEvent_Dev_0_1_Thunk() {
+  return &g_ppb_keyboard_input_event_dev_thunk;
+}
+
 const PPB_WheelInputEvent_1_0* GetPPB_WheelInputEvent_1_0_Thunk() {
   return &g_ppb_wheel_input_event_thunk;
 }
 
 const PPB_IMEInputEvent_Dev_0_1* GetPPB_IMEInputEvent_Dev_0_1_Thunk() {
   return &g_ppb_ime_input_event_thunk;
 }
 
 }  // namespace thunk
 }  // namespace ppapi