DO NOT MERGE: Don't freak out if SystemUiService isn't available

Reducing dependencies on system services

Change-Id: Ifb1a3bfb9c8dda5e22ec698ddb588058d20bd566
diff --git a/services/java/com/android/server/SystemServer.java b/services/java/com/android/server/SystemServer.java
index 6a2e6e3..dd1c904 100644
--- a/services/java/com/android/server/SystemServer.java
+++ b/services/java/com/android/server/SystemServer.java
@@ -941,7 +941,11 @@
                 } catch (Throwable e) {
                     reportWtf("observing native crashes", e);
                 }
-                startSystemUi(contextF);
+                try {
+                    startSystemUi(contextF);
+                } catch (Throwable e) {
+                    reportWtf("starting System UI", e);
+                }
                 try {
                     if (mountServiceF != null) mountServiceF.systemReady();
                 } catch (Throwable e) {