Collect some histograms about signed binary downloads.

chrome/chrome_browser.gypi

 # Copyright (c) 2011 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',
       'dependencies': [
@@ skipping 2017 matching lines @@
         'browser/safe_browsing/safe_browsing_database.cc',
         'browser/safe_browsing/safe_browsing_database.h',
         'browser/safe_browsing/safe_browsing_service.cc',
         'browser/safe_browsing/safe_browsing_service.h',
         'browser/safe_browsing/safe_browsing_store.cc',
         'browser/safe_browsing/safe_browsing_store.h',
         'browser/safe_browsing/safe_browsing_store_file.cc',
         'browser/safe_browsing/safe_browsing_store_file.h',
         'browser/safe_browsing/safe_browsing_util.cc',
         'browser/safe_browsing/safe_browsing_util.h',
+        'browser/safe_browsing/signature_util_posix.cc',
+        'browser/safe_browsing/signature_util_win.cc',
+        'browser/safe_browsing/signature_util.h',
         'browser/screensaver_window_finder_gtk.cc',
         'browser/screensaver_window_finder_gtk.h',
         'browser/search_engines/search_engine_type.h',
         'browser/search_engines/search_host_to_urls_map.cc',
         'browser/search_engines/search_host_to_urls_map.h',
         'browser/search_engines/search_provider_install_data.cc',
         'browser/search_engines/search_provider_install_data.h',
         'browser/search_engines/search_provider_install_state_message_filter.cc',
         'browser/search_engines/search_provider_install_state_message_filter.h',
         'browser/search_engines/search_terms_data.cc',
@@ skipping 3157 matching lines @@
       'type': 'static_library',
       'sources': [ 'browser/history/in_memory_url_index_cache.proto' ],
       'variables': {
         'proto_in_dir': 'browser/history',
         'proto_out_dir': 'chrome/browser/history',
       },
       'includes': [ '../build/protoc.gypi' ]
     },
   ],
 }