Add test jar generation logic for ant builds.

build/android/ant/chromium-jars.xml

Index: build/android/ant/chromium-jars.xml
diff --git a/build/android/ant/chromium-jars.xml b/build/android/ant/chromium-jars.xml
index 952147368b4ba83e050b99364cfce0843250b9f8..322165d10526a4aa745dfebb2c5a674e8c0c2052 100644
--- a/build/android/ant/chromium-jars.xml
+++ b/build/android/ant/chromium-jars.xml
@@ -32,12 +32,6 @@
   />
 
   <property-location
-    name="lib.dir"
-    location="${PRODUCT_DIR}/lib.java"
-    check-exists="false"
-  />
-
-  <property-location
     name="dest.dir"
     location="${PRODUCT_DIR}/java/${PACKAGE_NAME}"
     check-exists="false"
@@ -47,7 +41,6 @@
     <!-- Create the time stamp -->
     <tstamp/>
     <!-- Create the build directory structure used by compile -->
-    <mkdir dir="${lib.dir}"/>
     <mkdir dir="${dest.dir}"/>
 
     <!-- Remove all .class files from dest.dir. This prevents inclusion of
@@ -85,7 +78,7 @@
       description="Generate chromium_${PACKAGE_NAME}.jar.">
     <!-- Create the distribution directory -->
     <jar
-      jarfile="${lib.dir}/chromium_${PACKAGE_NAME}.jar"
+      jarfile="${lib.java.dir}/chromium_${PACKAGE_NAME}.jar"
       basedir="${dest.dir}"
     />
 
@@ -93,7 +86,7 @@
          time should still be updated. Otherwise, this target will continue to
          be rebuilt in future builds.
     -->
-    <touch file="${lib.dir}/chromium_${PACKAGE_NAME}.jar"/>
+    <touch file="${lib.java.dir}/chromium_${PACKAGE_NAME}.jar"/>
   </target>
 
   <target name="clean" description="clean up">