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

ppapi/thunk/ppb_input_event_api.h

Index: ppapi/thunk/ppb_input_event_api.h
diff --git a/ppapi/thunk/ppb_input_event_api.h b/ppapi/thunk/ppb_input_event_api.h
index 28b6c5856a33915f5f163d9b34307ceac322f111..f23c7959738fa1adeced5bfbac788d0a1c5ebac5 100644
--- a/ppapi/thunk/ppb_input_event_api.h
+++ b/ppapi/thunk/ppb_input_event_api.h
@@ -5,6 +5,7 @@
 #ifndef PPAPI_THUNK_PPB_INPUT_EVENT_API_H_
 #define PPAPI_THUNK_PPB_INPUT_EVENT_API_H_
 
+#include "ppapi/c/dev/ppb_ime_input_event_dev.h"
 #include "ppapi/c/ppb_input_event.h"
 #include "ppapi/thunk/ppapi_thunk_export.h"
 
@@ -34,6 +35,10 @@ class PPAPI_THUNK_EXPORT PPB_InputEvent_API {
   virtual PP_Bool GetWheelScrollByPage() = 0;
   virtual uint32_t GetKeyCode() = 0;
   virtual PP_Var GetCharacterText() = 0;
+  virtual uint32_t GetIMESegmentNumber() = 0;
+  virtual uint32_t GetIMESegmentOffset(uint32_t index) = 0;
+  virtual int32_t GetIMETargetSegment() = 0;
+  virtual void GetIMESelection(uint32_t* start, uint32_t* end) = 0;
 };
 
 }  // namespace thunk