More CryptKeeper UI work.

* Implemented failure case.
* More pixel perfect
* Remove the animation
* Display the encroid on the blank screen
* Remove the back button.
* Fix portrait mode screens

Bug: 3384231
Bug: 3394103
Bug: 3388721
Bug: 3381450
Bug: 3406278
Bug: 3351832
Change-Id: Ib763c8b577198deb45255acc767bc6d5409efc0c
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 26c7cc5..e94dfcb 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -1079,7 +1079,7 @@
         <activity android:name=".CryptKeeper"
                   android:immersive="true"
                   android:launchMode="singleTop"
-                  android:theme="@style/CryptKeeperTheme"
+                  android:theme="@android:style/Theme.Holo.NoActionBar"
                   android:windowSoftInputMode="stateAlwaysHidden">
             <intent-filter android:priority="10">
                 <action android:name="android.intent.action.MAIN" />