redesign and reimplement proxy config service and tracker, revise proxy ui on cros

chrome/app/generated_resources.grd

 <?xml version="1.0" encoding="UTF-8"?>
 
 <!--
 This file contains definitions of resources that will be translated for each
 locale.  The variables is_win, is_macosx, is_linux, and is_posix are available
 for making strings OS specific.  Other platform defines such as use_titlecase
 are declared in build/common.gypi.
 -->
 
 <grit base_dir="." latest_public_release="0" current_release="1"
@@ skipping 8127 matching lines @@
         <message name="IDS_OPTIONS_BROWSING_DATA_GROUP_NAME" desc="In Title Case: The title of the 'Browsing data' group.">
           Browsing Data
         </message>
         <message name="IDS_OPTIONS_IMPORT_DATA_BUTTON" desc="In Title Case: Label for the import data button.">
           Import Data from Another Browser...
         </message>
       </if>
 
       <if expr="pp_ifdef('chromeos')">
         <message name="IDS_OPTIONS_POLICY_MANAGED_PREFS" desc="Banner displayed in case there are policy-managed options the user won't be able to change.">
-          Some settings have been disabled by your administrator.
+          Some settings are being managed by your administrator.
         </message>
         <message name="IDS_OPTIONS_EXTENSION_MANAGED_PREFS" desc="Banner displayed in case there are extension-managed options the user won't be able to change.">
           Some settings are being managed by an extension.
         </message>
         <message name="IDS_OPTIONS_POLICY_EXTENSION_MANAGED_PREFS" desc="Banner displayed in case there are policy- and extension-managed options the user won't be able to change.">
           Some settings have been disabled by your administrator and others are being managed by an extension.
         </message>
       </if>
       <if expr="not pp_ifdef('chromeos') and is_posix">
         <message name="IDS_OPTIONS_POLICY_MANAGED_PREFS" desc="Banner displayed in case there are policy-managed options the user won't be able to change.">
@@ skipping 3300 matching lines @@
       <message name="IDS_OPTIONS_SETTINGS_INTERNET_OPTIONS_GATEWAY" desc="In settings Internet options, the label for gateway.">
         Gateway:
       </message>
       <message name="IDS_OPTIONS_SETTINGS_INTERNET_OPTIONS_DNSSERVER" desc="In settings Internet options, the label dns server.">
         DNS server:
       </message>
       <message name="IDS_OPTIONS_SETTINGS_INTERNET_OPTIONS_CHANGE_PROXY_BUTTON" desc="In settings Internet options, the button to configure proxy settings.">
         Change proxy settings...
       </message>
       <message name="IDS_OPTIONS_SETTINGS_INTERNET_OPTIONS_ENABLE_SHARED_PROXIES_HINT" desc="In settings Internet options, when proxy can't be changed, the hint for user to do so by enabling the setting for IDS_OPTIONS_SETTINGS_USE_SHARED_PROXIES.">
-        To change proxy settings, enable "<ph name="USE_SHARED_PROXIES">$1<ex>Allow proxies for shared networks</ex></ph>" setting.
-      </message>
-      <message name="IDS_OPTIONS_SETTINGS_INTERNET_OPTIONS_POLICY_MANAGED_PROXY_TEXT" desc="In settings Internet options, the text to display when proxy is policy-managed and user won't be able to change.">
-        Proxy settings have been disabled by your administrator.
-      </message>
-      <message name="IDS_OPTIONS_SETTINGS_INTERNET_OPTIONS_EXTENSION_MANAGED_PROXY_TEXT" desc="In settings Internet options, the text to display when proxy is extension-managed and user won't be able to change.">
-        Proxy settings are being managed by an extension.
-      </message>
-      <message name="IDS_OPTIONS_SETTINGS_INTERNET_OPTIONS_UNMODIFIABLE_PROXY_TEXT" desc="In settings Internet options, the text to display when proxy is not modifiable by user.">
-        Proxy settings cannot be modified by user.
+        To change proxy, enable "<ph name="USE_SHARED_PROXIES">$1<ex>Allow proxies for shared networks</ex></ph>" setting.
       </message>
       <message name="IDS_OPTIONS_SETTINGS_INTERNET_OPTIONS_HARDWARE_ADDRESS" desc="In settings Internet options, the label hardware address.">
         Hardware address:
       </message>
       <message name="IDS_OPTIONS_SETTINGS_INTERNET_OPTIONS_SECURITY_NONE" desc="In settings Internet options, a string specifying security none.">
         None
       </message>
       <message name="IDS_OPTIONS_SETTINGS_INTERNET_OPTIONS_SECURITY_WEP" desc="In settings Internet options, a string specifying security WEP.">
         WEP
       </message>
@@ skipping 2319 matching lines @@
     </messages>
     <structures fallback_to_english="true">
       <!-- Make sure these stay in sync with the structures in generated_resources.grd. -->
       <structure name="IDD_CHROME_FRAME_FIND_DIALOG" file="cf_resources.rc" type="dialog" >
       </structure>
       <structure name="IDD_CHROME_FRAME_READY_PROMPT" file="cf_resources.rc" type="dialog" >
       </structure>
     </structures>
   </release>
 </grit>