Notification interstitial screen as dialog on phone

Bug:  6500530 Change calendar notification's interstitial screen to dialog
Change-Id: Icc50849c2ced0cf3b2b47c9e181f495cb2d8aa79

AndroidManifest.xml

@@ -156,7 +156,7 @@
 
         <!-- Declarations for alerts/reminders -->
         <activity android:name=".alerts.AlertActivity" android:launchMode="singleInstance"
-             android:theme="@android:style/Theme.Holo.DialogWhenLarge" android:excludeFromRecents="true" />
+             android:theme="@android:style/Theme.Holo.Dialog" android:excludeFromRecents="true" />
 
         <receiver android:name=".alerts.AlertReceiver">
             <intent-filter>