Changed Blimp IME to use PopUp

blimp/client/app/android/java/strings/android_blimp_strings.grd

Index: blimp/client/app/android/java/strings/android_blimp_strings.grd
diff --git a/blimp/client/app/android/java/strings/android_blimp_strings.grd b/blimp/client/app/android/java/strings/android_blimp_strings.grd
index 720d47b7cd27488047860d6a34790f5e1b1b8f3f..4d00ea0dcd1ecfd313792d89759511b71f584e5b 100644
--- a/blimp/client/app/android/java/strings/android_blimp_strings.grd
+++ b/blimp/client/app/android/java/strings/android_blimp_strings.grd
@@ -181,6 +181,12 @@
       <message name="IDS_RESTART_NOW" desc="Restart now message">
         Restart Now
       </message>
+      <message name="IDS_OK" desc="Label for a confirm button. Used in multiple contexts. [CHAR-LIMIT=20]">

[David Trainor- moved to gerrit, 2016/08/22 21:25:25]

IDS_WEB_FORM_INPUT_OK?

[shaktisahu, 2016/08/23 17:35:14]

OK and Cancel are available in Chrome .grd file already with names IDS_OK and
IDS_CANCEL. I didn't want to duplicate that when moving to Chrome. So I had to
copy the same name to the blimp .grd file for the blimp app.

[David Trainor- moved to gerrit, 2016/08/29 04:28:50]

This code probably will never live in chrome/.  It'll stay in blimp/.  IIUC this
means we can't use the chrome strings, right?

[shaktisahu, 2016/08/29 18:58:47]

Ok, makes sense. Thanks for making this clear. I will change this string now.

+        OK
+      </message>
+      <message name="IDS_CANCEL" desc="Label for a cancel button. Used in multiple contexts. [CHAR-LIMIT=20]">

[David Trainor- moved to gerrit, 2016/08/22 21:25:25]

IDS_WEB_FORM_INPUT_CANCEL?

[shaktisahu, 2016/08/23 17:35:14]

See above.

+        Cancel
+      </message>
 
   <!-- Blimp UI strings, should prefix with blimp  -->
   <!-- TODO(xingliu): Clean resources files in the future. http://crbug.com/630687 -->