Added a message that suggest to configure a proxy for a network.

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index ee15183be5f00cd5eff44128c9885420a9db18bd..856ba8272200d27b22f57852917767bea6291025 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -15269,6 +15269,12 @@ Battery full
       <message name="IDS_LOGIN_MAYBE_CAPTIVE_PORTAL" desc="An offline message shown when we suggest that user may be behind the captive portal. Translation note: enter as Guest - could also be said enter as Guest user. Word user may be added to the translation if needed.">
         To use <ph name="NETWORK_ID">$1<ex>&gt;b&lt;Public Wifi&gt;/b&lt;</ex></ph> you may first need to <ph name="LINK_START">$2<ex>&gt;a&lt;</ex></ph>visit the network's sign-in page<ph name="LINK_END">$3<ex>&gt;/a&lt;</ex></ph>, which will open automatically in a few seconds. If it didn't happen, network can't be used for the Internet connection.
       </message>
+      <message name="IDS_LOGIN_MAYBE_CAPTIVE_PORTAL_PROXY" desc="An offline mssage shown when we suggest that user should configure the proxy.">
+	If you use a proxy server, check your proxy settings or
+        contact your network administrator to make sure the proxy
+        server is working. If you don't believe you should be using a
+        proxy server, adjust your <ph name="LINK_START">$1<ex>&gt;a&lt;</ex></ph>proxy settings<ph name="LINK_END">$2<ex>&gt;/a&lt;</ex></ph>.
+      </message>
       <message name="IDS_LOGIN_MAYBE_CAPTIVE_PORTAL_NETWORK_SELECT" desc="An offline message shown when we suggest that user may select other network.">
         You may also select another network.
       </message>