Add new profiling graph type

Change-Id: I37945e7668174f62545a8c8fb96e0ee68751a24e
diff --git a/res/values/arrays.xml b/res/values/arrays.xml
index c29c7be..b0968f0 100644
--- a/res/values/arrays.xml
+++ b/res/values/arrays.xml
@@ -689,14 +689,16 @@
     <!-- Titles for frame time tracking preference. [CHAR LIMIT=35] -->
     <string-array name="track_frame_time_entries">
         <item>Off</item>
-        <item>On screen</item>
+        <item>On screen as bars</item>
+        <item>On screen as lines</item>
         <item>In adb shell dumpsys gfxinfo</item>
     </string-array>
 
     <!-- Values for frame time tracking preference. -->
     <string-array name="track_frame_time_values" translatable="false" >
         <item>false</item>
-        <item>visual</item>
+        <item>visual_bars</item>
+        <item>visual_lines</item>
         <item>true</item>
     </string-array>