Keep screen on when Glass Camera Sample app is in the foreground

Change-Id: I337f4e29fe1b51da70310a89b951da24e236dd2d

Author: idzkowski-google

Camera2Sample/app/src/main/res/layout/activity_main.xml

@@ -19,6 +19,7 @@
     style="@style/CameraStyle"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    android:keepScreenOn="true"
     tools:context=".MainActivity">
 
   <fragment