Update network error template to new design

chrome/app/google_chrome_strings.grd

Index: chrome/app/google_chrome_strings.grd
diff --git a/chrome/app/google_chrome_strings.grd b/chrome/app/google_chrome_strings.grd
index 8ea19a8fc96ef13d0e27669ab64220560082dde5..27ce26f095b093c9476a8aa027d93ff72d93c0e7 100644
--- a/chrome/app/google_chrome_strings.grd
+++ b/chrome/app/google_chrome_strings.grd
@@ -1186,6 +1186,13 @@ Signing in anyway will merge Chrome information like bookmarks, history, and oth
       Your computer is running an old version of Microsoft Windows that cannot process this website's security certificate. Because of this problem, Google Chrome can't tell whether the certificate came from <ph name="SITE">$1<ex>google.com</ex></ph> or from someone on your network pretending to be <ph name="SITE">$1<ex>google.com</ex></ph>. Please update your computer to a more recent version of Windows.
       </message>
 
+      <!-- Offline interstitial  -->
+      <if expr="not is_android and not is_ios">
+        <message name="IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED" desc="Summary of the error page when the network connection failed. May be followed by platform dependent instructions.">
+          Google Chrome can’t display the webpage because your computer isn’t connected to the Internet.
+        </message>
+      </if>
+
       <!-- OOBE -->
       <if expr="chromeos">
         <message name="IDS_INSTALLING_UPDATE" desc="Label shown on the updates installation screen during OOBE">