Remove PPB_Scrollbar_Dev and PPB_Widget_Dev from native client

ppapi/native_client/src/shared/ppapi_proxy/ppb_widget.srpc

-# Copyright (c) 2011 The Native Client Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-# RPC methods used to implement PPB_Widget calls from the plugin.
-# See ppapi/c/dev/ppb_widget_dev.h for interface details.
-{
- 'name': 'PpbWidgetRpc',
- 'rpcs': [
-          {'name': 'PPB_Widget_IsWidget',
-           'inputs': [['resource', 'PP_Resource'],
-                     ],
-           'outputs': [['is_widget', 'int32_t'],     # PP_Bool
-                      ]
-          },
-          {'name': 'PPB_Widget_Paint',
-           'inputs': [['widget', 'PP_Resource'],
-                      ['rect', 'char[]'],            # PP_Rect
-                      ['image', 'PP_Resource'],
-                     ],
-           'outputs': [['success', 'int32_t'],       # PP_Bool
-                      ]
-          },
-          {'name': 'PPB_Widget_HandleEvent',
-           'inputs': [['widget', 'PP_Resource'],
-                      ['event', 'PP_Resource'],           # PP_InputEvent
-                     ],
-           'outputs': [['handled', 'int32_t'],       # PP_Bool
-                      ]
-          },
-          {'name': 'PPB_Widget_GetLocation',
-           'inputs': [['widget', 'PP_Resource'],
-                     ],
-           'outputs': [['location', 'char[]'],       # PP_Rect
-                       ['visible', 'int32_t'],       # PP_Bool
-                      ]
-          },
-          {'name': 'PPB_Widget_SetLocation',
-           'inputs': [['widget', 'PP_Resource'],
-                      ['location', 'char[]'],        # PP_Rect
-                     ],
-           'outputs': [
-                      ]
-          },
-         ]
-}