[Android] Makes GYP changes for EMMA coverage

build/android/ant/apk-package.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <!--
     Copyright (C) 2005-2008 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.
 -->
 
 <project default="-package">
   <property name="verbose" value="false" />
   <property name="out.dir" location="${OUT_DIR}" />
   <property name="out.absolute.dir" location="${out.dir}" />
 
   <property name="sdk.dir" location="${ANDROID_SDK_ROOT}"/>
+  <property name="emma.device.jar" location="${EMMA_DEVICE_JAR}" />
+
+  <condition property="emma.enabled" value="true" else="false">
+    <equals arg1="${EMMA_INSTRUMENT}" arg2="1"/>
+  </condition>
 
   <!-- jar file from where the tasks are loaded -->
   <path id="android.antlibs">
     <pathelement path="${sdk.dir}/tools/lib/ant-tasks.jar" />
   </path>
 
   <!-- Custom tasks -->
   <taskdef resource="anttasks.properties" classpathref="android.antlibs" />
 
   <condition property="build.target" value="release" else="debug">
@@ skipping 13 matching lines @@
 
   <!-- Intermediate files -->
   <property name="resource.package.file.name" value="${APK_NAME}.ap_" />
 
   <property name="dex.file.name" value="classes.dex" />
   <property name="intermediate.dex.file" location="${out.absolute.dir}/${dex.file.name}" />
 
   <property name="source.dir" value="${SOURCE_DIR}" />
   <property name="source.absolute.dir" location="${source.dir}" />
 
+  <!-- Macro that enables passing a variable list of external jar files
+       to ApkBuilder. -->
+  <macrodef name="package-helper">
+    <element name="extra-jars" optional="yes" />
+    <sequential>
+      <apkbuilder
+          outfolder="${out.absolute.dir}"
+          resourcefile="${resource.package.file.name}"
+          apkfilepath="${out.packaged.file}"
+          debugpackaging="${build.is.packaging.debug}"
+          debugsigning="${build.is.signing.debug}"
+          verbose="${verbose}"
+          hascode="true"
+          previousBuildType="/"
+          buildType="${build.is.packaging.debug}/${build.is.signing.debug}">
+        <dex path="${intermediate.dex.file}"/>
+        <sourcefolder path="${source.absolute.dir}"/>
+        <nativefolder path="${native.libs.absolute.dir}" />
+        <extra-jars/>
+      </apkbuilder>
+    </sequential>
+  </macrodef>
+
+
   <!-- Packages the application. -->
   <target name="-package">
-    <apkbuilder
-        outfolder="${out.absolute.dir}"
-        resourcefile="${resource.package.file.name}"
-        apkfilepath="${out.packaged.file}"
-        debugpackaging="${build.is.packaging.debug}"
-        debugsigning="${build.is.signing.debug}"
-        verbose="${verbose}"
-        hascode="true"
-        previousBuildType="/"
-        buildType="${build.is.packaging.debug}/${build.is.signing.debug}">
-      <dex path="${intermediate.dex.file}"/>
-      <sourcefolder path="${source.absolute.dir}"/>
-      <nativefolder path="${native.libs.absolute.dir}" />
-    </apkbuilder>
+    <if condition="${emma.enabled}">
+      <then>
+        <package-helper>
+          <extra-jars>
+            <jarfile path="${emma.device.jar}" />
+          </extra-jars>
+        </package-helper>
+      </then>
+      <else>
+        <package-helper />
+      </else>
+    </if>
   </target>
 </project>