Update browseable samples for lmp-docs

Synced to commit df5e5013422b81b4fd05c0ac9fd964b13624847a. Includes
new samples for Android Auto.

Change-Id: I3fec46e2a6b3f196682a92f1afd91eb682dc2dc1

samples/browseable/BasicAndroidKeyStore/AndroidManifest.xml

@@ -22,7 +22,7 @@
     android:versionCode="1"
     android:versionName="1.0">
 
-    <uses-sdk android:minSdkVersion="18" android:targetSdkVersion="19" />
+    <!-- Min/target SDK versions (<uses-sdk>) managed by build.gradle -->
 
     <application android:allowBackup="true"
         android:label="@string/app_name"

samples/browseable/BasicAndroidKeyStore/_index.jd

@@ -1,15 +1,14 @@
-
-
-
 page.tags="BasicAndroidKeyStore"
 sample.group=Security
 @jd:body
 
-<p>This sample demonstrates how to use a {java.security.KeyStore} to
-safely create and store encryption keys that only your application can access.
-You can also sign data using those keys.</p>
-<p>To see this in action, run the sample application and click:</p>
-<ul>
-<li><strong>Create</strong> to create a new KeyPair.</li>
-<li><strong>Sign</strong> to sign some data using a KeyPair.</li>
-<li><strong>Verify</strong> to verify the data using the signature provided.</li>
+<p>
+            
+                Welcome to the <b>Basic Android Key Store</b> sample!\n\n
+                This sample demonstrates how to use the Android Key Store to safely create and store
+                encryption keys that only your application can access.  You can also sign data
+                using those keys.\n\n
+                To create a new KeyPair, click \"Create\".\n\n
+                To sign some data using a KeyPair, click \"Sign\".\n\n
+                To verify the data using the signature provided, click \"Verify\".\n\n            
+        </p>

samples/browseable/BasicAndroidKeyStore/res/values-v21/template-styles.xml

@@ -0,0 +1,22 @@
+<!--
+  Copyright 2014 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.
+  -->
+
+<resources>
+
+    <!-- Activity themes -->
+    <style name="Theme.Base" parent="android:Theme.Material.Light" />
+
+</resources>

samples/browseable/BasicAndroidKeyStore/res/values/base-strings.xml

@@ -14,9 +14,6 @@
  See the License for the specific language governing permissions and
  limitations under the License.
 -->
-
-
-
 <resources>
     <string name="app_name">BasicAndroidKeyStore</string>
     <string name="intro_message">

samples/browseable/BasicAndroidKeyStore/src/com.example.android.basicandroidkeystore/MainActivity.java

@@ -14,9 +14,6 @@
 * limitations under the License.
 */
 
-
-
-
 package com.example.android.basicandroidkeystore;
 
 import android.graphics.Color;