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

res/anim/crypt_keeper_exit.xml

@@ -1,33 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2011 The Android Open Source Project
-
-     Licensed under the Apache License, Version 2.0 (the "License");
-     you may not use this file except in compliance with the License.
-     You may obtain a copy of the License at
-
-          http://www.apache.org/licenses/LICENSE-2.0
-
-     Unless required by applicable law or agreed to in writing, software
-     distributed under the License is distributed on an "AS IS" BASIS,
-     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-     See the License for the specific language governing permissions and
-     limitations under the License.
--->
-
-<set xmlns:android="http://schemas.android.com/apk/res/android"
-    android:interpolator="@android:anim/accelerate_interpolator"
->
-
-    <scale
-        android:fromXScale="1.0"
-        android:toXScale="0.0"
-        android:fromYScale="1.0"
-        android:toYScale="0.0"
-        android:pivotX="50%"
-        android:pivotY="50%"
-        android:fillAfter="false"
-        android:duration="500"
-    />
-
-</set>
-