Add movement information to PPB_MouseInputEvent.

ppapi/thunk/ppb_input_event_api.h

 // 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.
 
 #ifndef PPAPI_THUNK_PPB_INPUT_EVENT_API_H_
 #define PPAPI_THUNK_PPB_INPUT_EVENT_API_H_
 
 #include "ppapi/c/ppb_input_event.h"
 #include "ppapi/thunk/ppapi_thunk_export.h"
 
@@ skipping 10 matching lines @@
   // This function is not exposed through the C API, but returns the internal
   // event data for easy proxying.
   virtual const InputEventData& GetInputEventData() const = 0;
 
   virtual PP_InputEvent_Type GetType() = 0;
   virtual PP_TimeTicks GetTimeStamp() = 0;
   virtual uint32_t GetModifiers() = 0;
   virtual PP_InputEvent_MouseButton GetMouseButton() = 0;
   virtual PP_Point GetMousePosition() = 0;
   virtual int32_t GetMouseClickCount() = 0;
+  virtual PP_Point GetMouseMovement() = 0;
   virtual PP_FloatPoint GetWheelDelta() = 0;
   virtual PP_FloatPoint GetWheelTicks() = 0;
   virtual PP_Bool GetWheelScrollByPage() = 0;
   virtual uint32_t GetKeyCode() = 0;
   virtual PP_Var GetCharacterText() = 0;
 };
 
 }  // namespace thunk
 }  // namespace ppapi
 
 #endif  // PPAPI_THUNK_PPB_INPUT_EVENT_API_H_