Added in-session captive portal notification.

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 c4aba89c9f85ead1a0f9366df0c0673c93d59f23..e3ddc97bf0e3983a8e67e19e471ec9eab032c0d0 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -7021,6 +7021,14 @@ Keep your key file in a safe place. You will need it to create new versions of y
       <message name="IDS_FLAGS_OUT_OF_PROCESS_PDF_DESCRIPTION" desc="Description for the flag to enable out of process PDF.">
         Enable the out of process PDF plugin.
       </message>
+      <if expr="pp_ifdef('chromeos')">

[Jun Mukai, 2014/02/19 19:17:25]

If this is chromeos-specific, consider adding string to chromeos_strings.grdp
instead of this file.

[ygorshenin1, 2014/02/20 16:31:39]

Done.

+        <message name="IDS_FLAGS_NETWORK_PORTAL_NOTIFICATION_NAME" desc="Title for the flag to enable/disable notifications about captive portals.">
+          Notifications about captive portals
+        </message>
+        <message name="IDS_FLAGS_NETWORK_PORTAL_NOTIFICATION_DESCRIPTION" desc="Description for the flag to enable/disable notifications about captive portals.">
+          If enabled, notification is displayed when device is connected to a network behind captive portal.
+        </message>
+      </if>
 
       <!-- Crashes -->
       <message name="IDS_CRASHES_TITLE" desc="Title for the chrome://crashes page.">
@@ -11831,6 +11839,17 @@ Would you like to start <ph name="CONTROL_PANEL_APPLET_NAME">$1<ex>Add/Remove Pr
           You have enabled multiprofiles, an unsupported experimental mode in Chrome OS. Features may change or break.
         </message>
       </if>
+      <if expr="pp_ifdef('chromeos')">
+        <message name="IDS_PORTAL_DETECTION_NOTIFICATION_TITLE" desc="">
+          Action required to connect to the Internet
+        </message>
+        <message name="IDS_PORTAL_DETECTION_NOTIFICATION_MESSAGE" desc="">
+          To use <ph name="NETWORK_ID">$1<ex>Public Wifi</ex></ph> you need to visit the network's login page.
+        </message>
+        <message name="IDS_PORTAL_DETECTION_NOTIFICATION_SIGNIN_BUTTON" desc="">
+          Go to login page
+        </message>
+      </if>
 
      <!-- SafeBrowsing -->
       <message name="IDS_SAFE_BROWSING_MALWARE_TITLE" desc="SafeBrowsing Malware HTML title">