Adds ContentShellTest.apk and very simple test.

content/shell/android/javatests/content_shell_test_apk.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <!--
   Copyright (c) 2012 The Chromium Authors. All rights reserved.
   Use of this source code is governed by a BSD-style license that can be
   found in the LICENSE file.
 -->
-<project name="ContentShell" default="debug" basedir=".">
+<project name="ContentShellTest" default="debug" basedir=".">
 
   <description>
-    Building ContentShell.apk
+    Building ContentShellTest.apk
   </description>
 
   <property environment="env"/>
   <property name="sdk.dir" location="${env.ANDROID_SDK_ROOT}"/>
   <property name="toolchain.dir" location="${env.ANDROID_TOOLCHAIN}"/>
   <property name="source.dir" location="src"/>
   <property name="target" value="android-${env.ANDROID_SDK_VERSION}"/>
   <property name="target.abi" value="${APP_ABI}"/>
-  <property name="out.dir" location="${PRODUCT_DIR}/content_shell"/>
+  <property name="out.dir" location="${PRODUCT_DIR}/content_shell_test"/>
   <property name="resource.absolute.dir" value="../res"/>
   <property name="gen.absolute.dir" value="${out.dir}/gen"/>
   <path id="native.libs.gdbserver">
     <fileset file="${toolchain.dir}/../../gdbserver"/>
   </path>
   <property name="native.libs.absolute.dir" location="${out.dir}/libs" />
   <property name="asset.absolute.dir" location="${out.dir}/assets" />
 
   <path id="out.dex.jar.input.ref">
-    <fileset file="${out.dir}/java/libs/chromium_content.jar"/>
-    <fileset file="${out.dir}/java/libs/chromium_net.jar"/>
-    <fileset file="${out.dir}/java/libs/chromium_base.jar"/>
-    <fileset file="${out.dir}/java/libs/chromium_media.jar"/>
+    <fileset dir="${PRODUCT_DIR}/content_shell/java/libs"/>
+    <pathelement location="${PRODUCT_DIR}/content_shell/classes"/>
   </path>
   <property name="java.compilerargs" value="-classpath ${toString:out.dex.jar.input.ref}"/>
 
   <!-- We expect PRODUCT_DIR to be set like the gyp var
        (e.g. $ROOT/out/Debug) -->
   <!-- TODO(satish): ideally we need this to run before -build-setup, where
        directories are made based on this variable. -->
   <target name="-pre-build">
     <if>
       <condition>
@@ skipping 20 matching lines @@
         <copy todir="${out.dir}/libs/${target.abi}">
           <path refid="native.libs.gdbserver"/>
         </copy>
       </then>
     </if>
   </target>
 
   <import file="${sdk.dir}/tools/ant/build.xml" />
 
 </project>