Reland http://codereview.chromium.org/7452002/ again

ppapi/examples/2d/graphics_2d_example.c

 /* 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 <stdlib.h>
 #include <string.h>
 
 #include "ppapi/c/pp_completion_callback.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/pp_instance.h"
@@ skipping 139 matching lines @@
     /* Got a resize, repaint the plugin. */
     Repaint(info, &position->size);
     info->last_size.width = position->size.width;
     info->last_size.height = position->size.height;
   }
 }
 
 void Instance_DidChangeFocus(PP_Instance pp_instance, PP_Bool has_focus) {
 }
 
-PP_Bool Instance_HandleInputEvent(PP_Instance pp_instance,
-                               const struct PP_InputEvent* event) {
-  /* We don't handle any events. */
-  return PP_FALSE;
-}
-
 PP_Bool Instance_HandleDocumentLoad(PP_Instance pp_instance,
                                     PP_Resource pp_url_loader) {
   return PP_FALSE;
 }
 
 static struct PPP_Instance instance_interface = {
   &Instance_DidCreate,
   &Instance_DidDestroy,
   &Instance_DidChangeView,
   &Instance_DidChangeFocus,
-  &Instance_HandleInputEvent,
   &Instance_HandleDocumentLoad
 };
 
 
 /* Global entrypoints --------------------------------------------------------*/
 
 PP_EXPORT int32_t PPP_InitializeModule(PP_Module module,
                                        PPB_GetInterface get_browser_interface) {
   g_get_browser_interface = get_browser_interface;
 
@@ skipping 14 matching lines @@
 
 PP_EXPORT void PPP_ShutdownModule() {
 }
 
 PP_EXPORT const void* PPP_GetInterface(const char* interface_name) {
   if (strcmp(interface_name, PPP_INSTANCE_INTERFACE) == 0)
     return &instance_interface;
   return NULL;
 }