Adds ContentShellTest.apk and very simple test.

content/shell/android/javatests/content_shell_test_apk.xml

Index: content/shell/android/javatests/content_shell_test_apk.xml
diff --git a/content/shell/android/java/content_shell_apk.xml b/content/shell/android/javatests/content_shell_test_apk.xml
similarity index 87%
copy from content/shell/android/java/content_shell_apk.xml
copy to content/shell/android/javatests/content_shell_test_apk.xml
index cbdeaccfeafb5d94e4a1e0cd1293ec6db9608251..497a81c9b6a0d13ba9a018f0bc496a1a711e0935 100644
--- a/content/shell/android/java/content_shell_apk.xml
+++ b/content/shell/android/javatests/content_shell_test_apk.xml
@@ -4,10 +4,10 @@
   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"/>
@@ -16,7 +16,7 @@
   <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="${out.dir}/gen"/>
   <path id="native.libs.gdbserver">
@@ -26,10 +26,8 @@
   <property name="asset.absolute.dir" location="${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}"/>