Remove unused in-process pepper APIs

content/content_renderer.gypi

 # Copyright (c) 2012 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.
 
 {
   'dependencies': [
     '../base/base.gyp:base',
     '../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
     '../cc/cc.gyp:cc',
     '../cc/blink/cc_blink.gyp:cc_blink',
@@ skipping 524 matching lines @@
       'renderer/pepper/ppb_buffer_impl.cc',
       'renderer/pepper/ppb_buffer_impl.h',
       'renderer/pepper/ppb_flash_message_loop_impl.cc',
       'renderer/pepper/ppb_flash_message_loop_impl.h',
       'renderer/pepper/ppb_graphics_3d_impl.cc',
       'renderer/pepper/ppb_graphics_3d_impl.h',
       'renderer/pepper/ppb_image_data_impl.cc',
       'renderer/pepper/ppb_image_data_impl.h',
       'renderer/pepper/ppb_proxy_impl.cc',
       'renderer/pepper/ppb_proxy_impl.h',
-      'renderer/pepper/ppb_scrollbar_impl.cc',
-      'renderer/pepper/ppb_scrollbar_impl.h',
       'renderer/pepper/ppb_var_deprecated_impl.cc',
       'renderer/pepper/ppb_var_deprecated_impl.h',
       'renderer/pepper/ppb_video_decoder_impl.cc',
       'renderer/pepper/ppb_video_decoder_impl.h',
-      'renderer/pepper/ppb_widget_impl.cc',
-      'renderer/pepper/ppb_widget_impl.h',
       'renderer/pepper/renderer_ppapi_host_impl.cc',
       'renderer/pepper/renderer_ppapi_host_impl.h',
       'renderer/pepper/renderer_restrict_dispatch_group.h',
       'renderer/pepper/resource_converter.cc',
       'renderer/pepper/resource_converter.h',
       'renderer/pepper/resource_creation_impl.cc',
       'renderer/pepper/resource_creation_impl.h',
       'renderer/pepper/url_request_info_util.cc',
       'renderer/pepper/url_request_info_util.h',
       'renderer/pepper/url_response_info_util.cc',
@@ skipping 283 matching lines @@
     }],
   ],
   'target_conditions': [
     ['OS=="android"', {
       'sources/': [
         ['include', '^renderer/render_view_linux\\.cc$'],
       ],
     }],
   ],
 }