[Android] Add chrome_java target for building Java code in the chromium layer.

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
new file mode 100644
index 0000000000000000000000000000000000000000..f2109fcf05fa65801ddf9b3f2aa5104521dd7a9f
--- /dev/null
+++ b/build/android/ant/chromium-jars.xml
@@ -0,0 +1,63 @@
+<!--
+  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="chromium-jars" default="dist">
+  <!-- Common ant build file for for chromium_*.jars.
+  For creating a new chromium_*.jar :
+  1. Use build/java.gyp action. This action will set PACKAGE_NAME.
+     The jar will be created as chromium_${PACKAGE_NAME} in
+      ${PRODUCT_DIR}/lib.java.
+  2. Set javac.custom.classpath to classpath to use for javac.
+  3. Override javac.srcdir for providing custom source directory for javac.
+  -->
+
+  <import file="common.xml" />
+  <property-location name="src" location="src" />
+  <property-location name="lib.dir" location="${PRODUCT_DIR}/lib.java"
+    check-exists="false" />
+  <property-location name="dest.dir" location="${PRODUCT_DIR}/java/${PACKAGE_NAME}"
+    check-exists="false" />
+
+  <target name="init">
+    <!-- Create the time stamp -->
+    <tstamp/>
+    <!-- Create the build directory structure used by compile -->
+    <mkdir dir="${lib.dir}" />
+    <mkdir dir="${dest.dir}" />
+  </target>
+
+  <!-- Compile target for jars. Requires javac.custom.classpath to be set.
+       Optionally javac.srcdir can be overridden to custom path for src
+       directories. -->
+  <target name="compile" depends="init"
+    description="Compiles source." >

[nilesh, 2012/07/25 16:57:22]

looks like description will fit on the line above.

[Yaron, 2012/07/25 18:12:23]

Done.

+    <fail message="Error: javac.custom.classpath is not set. Please set it to
+      classpath for javac.">
+      <condition>
+        <not><isreference refid="javac.custom.classpath" /></not>
+      </condition>
+    </fail>
+    <property-value name="javac.srcdir" value ="${src}" />
+    <echo>Compiling ${javac.srcdir}, classpath: ${toString:javac.custom.classpath}</echo>
+    <javac srcdir="${javac.srcdir}" destdir="${dest.dir}" debug="true" includeantruntime="false">
+      <classpath>
+        <path refid="javac.custom.classpath" />
+      </classpath>
+    </javac>
+  </target>
+
+  <target name="dist" depends="compile"
+    description="Generate chromium_${PACKAGE_NAME}.jar." >

[nilesh, 2012/07/25 16:57:22]

I think 4 space indent for continuation will make it more distinguishable. Here
and elsewhere.

[Yaron, 2012/07/25 18:12:23]

Done.

+    <!-- Create the distribution directory -->
+    <mkdir dir="${lib.dir}" />
+    <jar jarfile="${lib.dir}/chromium_${PACKAGE_NAME}.jar" basedir="${dest.dir}" />
+  </target>
+
+  <target name="clean"
+          description="clean up" >

[nilesh, 2012/07/25 16:57:22]

no line break needed.

[Yaron, 2012/07/25 18:12:23]

Done.

+    <!-- Delete the appropriate directory trees -->
+    <delete dir="${dest.dir}" />
+  </target>
+</project>