Create a basic doze dream in SystemUI.

The doze dream is not configured by default.

When configured, the doze dream does not show anything by default.
It teases a dark version of the keyguard (showing only the time
and notifications) when a notification arrives or significant motion
is detected.

Bug:15863249
Change-Id: Icfceb054d35d6fd4d9178eda7480e2464873ca4b
diff --git a/packages/SystemUI/AndroidManifest.xml b/packages/SystemUI/AndroidManifest.xml
index e9cb197..0df6c74 100644
--- a/packages/SystemUI/AndroidManifest.xml
+++ b/packages/SystemUI/AndroidManifest.xml
@@ -300,5 +300,11 @@
                 <category android:name="android.intent.category.DESK_DOCK" />
             </intent-filter>
         </activity>
+
+
+        <!-- I dream of notifications -->
+        <service
+            android:name=".doze.DozeService"
+            android:exported="true" />
     </application>
 </manifest>