Componentize proxy code from chrome/browser/net

chrome/chrome_browser.gypi

Index: chrome/chrome_browser.gypi
diff --git a/chrome/chrome_browser.gypi b/chrome/chrome_browser.gypi
index cb00a0c7f8400c351bf061fb6c66388334adcfb6..1a4920f6b47340c1b4a0d0a53fe9d943ee5f332c 100644
--- a/chrome/chrome_browser.gypi
+++ b/chrome/chrome_browser.gypi
@@ -1929,10 +1929,6 @@
       'browser/net/prediction_options.h',
       'browser/net/predictor.cc',
       'browser/net/predictor.h',
-      'browser/net/pref_proxy_config_tracker.cc',
-      'browser/net/pref_proxy_config_tracker.h',
-      'browser/net/pref_proxy_config_tracker_impl.cc',
-      'browser/net/pref_proxy_config_tracker_impl.h',
       'browser/net/probe_message.cc',
       'browser/net/probe_message.h',
       'browser/net/proxy_service_factory.cc',
@@ -3252,13 +3248,14 @@
             '../components/components.gyp:password_manager_sync_browser',
             '../components/components.gyp:plugins_common',
             '../components/components.gyp:power',
+            '../components/components.gyp:proxy_config',
             '../components/components.gyp:safe_json',
             '../components/components.gyp:sessions_content',
             '../components/components.gyp:storage_monitor',
             '../components/components.gyp:translate_content_browser',
             '../components/components.gyp:upload_list',
             '../components/components.gyp:url_matcher',
-            '../components/components.gyp:user_prefs_tracked', 
+            '../components/components.gyp:user_prefs_tracked',
             '../components/components.gyp:visitedlink_browser',
             '../components/components.gyp:visitedlink_common',
             '../components/components.gyp:web_cache_browser',