Remove GTalk Pepper interfaces and related code.

chrome/chrome_browser.gypi

 # Copyright 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.
 
 {
   'variables': {
     # All .cc, .h, .m, and .mm files under browser except for:
     # * tests and mocks.
     # * code below browser/chromeos
     # * code below browser/extensions
@@ skipping 2005 matching lines @@
       'browser/renderer_host/pepper/pepper_flash_browser_host.cc',
       'browser/renderer_host/pepper/pepper_flash_browser_host.h',
       'browser/renderer_host/pepper/pepper_flash_clipboard_message_filter.cc',
       'browser/renderer_host/pepper/pepper_flash_clipboard_message_filter.h',
       'browser/renderer_host/pepper/pepper_flash_drm_host.cc',
       'browser/renderer_host/pepper/pepper_flash_drm_host.h',
       'browser/renderer_host/pepper/pepper_isolated_file_system_message_filter.cc',
       'browser/renderer_host/pepper/pepper_isolated_file_system_message_filter.h',
       'browser/renderer_host/pepper/pepper_output_protection_message_filter.cc',
       'browser/renderer_host/pepper/pepper_output_protection_message_filter.h',
-      'browser/renderer_host/pepper/pepper_talk_host.cc',
-      'browser/renderer_host/pepper/pepper_talk_host.h',
     ],
     'chrome_browser_plugin_installation_sources': [
       'browser/plugins/plugin_installer.cc',
       'browser/plugins/plugin_installer.h',
       'browser/plugins/plugin_installer_observer.cc',
       'browser/plugins/plugin_installer_observer.h',
       'browser/plugins/plugins_resource_service.cc',
       'browser/plugins/plugins_resource_service.h',
     ],
     # Files to compile when configuration policy is disabled. Note that the
@@ skipping 1808 matching lines @@
           'variables': {
             'proto_in_dir': 'browser/sync_file_system/drive_backend',
             'proto_out_dir': 'chrome/browser/sync_file_system/drive_backend',
           },
           'includes': [ '../build/protoc.gypi' ]
         },
       ],
     },],
   ],
 }