add 'capturing' string for in process indicators

This string can be used for in progess screen indicators.

Bug: 11505806
Change-Id: I3b0e3809b8389cfea2059b239d09a3e0766a77c6
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 69b60fe..9879864 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -185,6 +185,9 @@
     <!-- A label that overlays on top of the preview frame to indicate the camcorder is in time lapse mode [CHAR LIMIT=35] -->
     <string name="time_lapse_title">Time lapse recording</string>
 
+    <!-- Screen display message during image capture to indicate that the capture is in progress, like during HDR+. [CHAR LIMIT=20] -->
+    <string name="capturing">Capturing</string>
+
     <!-- Settings screen, camera selection dialog title. Users can select a camera from the phone (front-facing or back-facing). [CHAR LIMIT=20] -->
     <string name="pref_camera_id_title">Choose camera</string>