Add an IPC method for Blink to call RapporService::RecordSample()

components/rappor.gypi

 # Copyright 2014 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.
 
 {
   'targets': [
     {
       # GN version: //components/rappor
       'target_name': 'rappor',
       'type': 'static_library',
@@ skipping 11 matching lines @@
       'sources': [
         # Note: sources list duplicated in GN build.
         'rappor/bloom_filter.cc',
         'rappor/bloom_filter.h',
         'rappor/byte_vector_utils.cc',
         'rappor/byte_vector_utils.h',
         'rappor/log_uploader.cc',
         'rappor/log_uploader.h',
         'rappor/log_uploader_interface.h',
         'rappor/proto/rappor_metric.proto',
+        'rappor/rappor_message_filter.cc',
+        'rappor/rappor_message_filter.h',
+        'rappor/rappor_messages.cc',
+        'rappor/rappor_messages.h',
         'rappor/rappor_metric.cc',
         'rappor/rappor_metric.h',
         'rappor/rappor_parameters.cc',
         'rappor/rappor_parameters.h',
         'rappor/rappor_pref_names.cc',
         'rappor/rappor_pref_names.h',
         'rappor/rappor_prefs.cc',
         'rappor/rappor_prefs.h',
         'rappor/rappor_service.cc',
         'rappor/rappor_service.h',
@@ skipping 18 matching lines @@
       ],
       'sources': [
         'rappor/test_log_uploader.cc',
         'rappor/test_log_uploader.h',
         'rappor/test_rappor_service.cc',
         'rappor/test_rappor_service.h',
       ],
     },
   ],
 }