Add more Rappor metrics

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.
 
 {
   'targets': [
     {
       'target_name': 'browser',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
@@ skipping 1795 matching lines @@
         'browser/profiles/profile_shortcut_manager_win.h',
         'browser/profiles/profile_window.cc',
         'browser/profiles/profile_window.h',
         'browser/profiles/profiles_state.cc',
         'browser/profiles/profiles_state.h',
         'browser/profiles/startup_task_runner_service.cc',
         'browser/profiles/startup_task_runner_service.h',
         'browser/profiles/startup_task_runner_service_factory.cc',
         'browser/profiles/startup_task_runner_service_factory.h',
         'browser/profiles/storage_partition_descriptor.h',
+        'browser/rappor/sampling.cc',
+        'browser/rappor/sampling.h',
         'browser/remove_rows_table_model.h',
         'browser/renderer_context_menu/context_menu_content_type.cc',
         'browser/renderer_context_menu/context_menu_content_type.h',
         'browser/renderer_context_menu/context_menu_content_type_app_mode.cc',
         'browser/renderer_context_menu/context_menu_content_type_app_mode.h',
         'browser/renderer_context_menu/context_menu_content_type_extension_popup.cc',
         'browser/renderer_context_menu/context_menu_content_type_extension_popup.h',
         'browser/renderer_context_menu/context_menu_content_type_factory.cc',
         'browser/renderer_context_menu/context_menu_content_type_factory.h',
         'browser/renderer_context_menu/context_menu_content_type_panel.cc',
@@ skipping 1947 matching lines @@
             'package_name': 'org/chromium/chrome/browser',
             'template_deps': ['browser/android/tab_load_status.h'],
           },
           'includes': [ '../build/android/java_cpp_template.gypi' ],
         },
       ],
      },
     ],
   ],
 }