Additional update on Pepper IME API and boilerplate thunk/proxy implementation.

ppapi/cpp/dev/ime_input_event_dev.cc

 // Copyright (c) 2011 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/cpp/dev/ime_input_event_dev.h"
 
 #include "ppapi/cpp/instance.h"
 #include "ppapi/cpp/module.h"
 #include "ppapi/cpp/module_impl.h"
 #include "ppapi/cpp/var.h"
@@ skipping 31 matching lines @@
              get_interface<PPB_IMEInputEvent_Dev>()->GetText(pp_resource()));
 }
 
 uint32_t IMEInputEvent_Dev::GetSegmentNumber() const {
   if (!has_interface<PPB_IMEInputEvent_Dev>())
     return 0;
   return get_interface<PPB_IMEInputEvent_Dev>()->GetSegmentNumber(
       pp_resource());
 }
 
-std::pair<uint32_t, uint32_t>
-IMEInputEvent_Dev::GetSegmentAt(uint32_t index) const {
-  std::pair<uint32_t, uint32_t> range(0, 0);
+uint32_t IMEInputEvent_Dev::GetSegmentOffset(uint32_t index) const {
   if (!has_interface<PPB_IMEInputEvent_Dev>())
-    return range;
-  get_interface<PPB_IMEInputEvent_Dev>()->GetSegmentAt(pp_resource(),
-                                                       index,
-                                                       &range.first,
-                                                       &range.second);
-  return range;
+    return 0;
+  return get_interface<PPB_IMEInputEvent_Dev>()->GetSegmentOffset(pp_resource(),
+                                                                  index);
 }
 
 int32_t IMEInputEvent_Dev::GetTargetSegment() const {
   if (!has_interface<PPB_IMEInputEvent_Dev>())
     return 0;
   return get_interface<PPB_IMEInputEvent_Dev>()->GetTargetSegment(
       pp_resource());
 }
 
 std::pair<uint32_t, uint32_t> IMEInputEvent_Dev::GetSelection() const {
   std::pair<uint32_t, uint32_t> range(0, 0);
   if (!has_interface<PPB_IMEInputEvent_Dev>())
     return range;
   get_interface<PPB_IMEInputEvent_Dev>()->GetSelection(pp_resource(),
                                                        &range.first,
                                                        &range.second);
   return range;
 }
 
 
 }  // namespace pp