[Custom tab]Fix a bug that clicking media notification opens blank tab

chrome/android/java/strings/android_chrome_strings.grd

Index: chrome/android/java/strings/android_chrome_strings.grd
diff --git a/chrome/android/java/strings/android_chrome_strings.grd b/chrome/android/java/strings/android_chrome_strings.grd
index 34c02e3c450ac1937a8e8c35794230f9ed1b166d..6a179632a7cff251358b568322323a555e350593 100644
--- a/chrome/android/java/strings/android_chrome_strings.grd
+++ b/chrome/android/java/strings/android_chrome_strings.grd
@@ -2146,6 +2146,12 @@ Just open Chrome on your computer, go to the menu, and select “Sign in to Chro
       <message name="IDS_MEDIA_NOTIFICATION_TEXT_NO_LINK" desc="The notification will display this text for the user to identify the tab to return to when the link is unknown">
         Touch to return to the tab
       </message>
+      <message name="IDS_MEDIA_NOTIFICATION_LINK_CUSTOM_TAB" desc="The notification prompting the user to stop the media.">
+        Touch to stop <ph name="URL_OF_THE_CURRENT_TAB">%1$s<ex>https://apprtc.appspot.com</ex></ph>

[gone, 2015/09/02 21:55:17]

You're not stopping a website.  "Touch to stop playback on <site>"?

[Ian Wen, 2015/09/02 22:00:14]

Done.

+      </message>
+      <message name="IDS_MEDIA_NOTIFICATION_NO_LINK_CUSTOM_TAB" desc="The notification prompting the user to stop the media when the link is unknown.">
+        Touch to stop
+      </message>
       <message name="IDS_NEW_TAB_INCOGNITO_HEADER" desc="Header shown when a user opens an incognito tab explaining incognito mode">
         You've gone incognito.
       </message>