Add new GN junit binary template and new GYP java binary template.

testing/android/junit/java/src/org/chromium/testing/local/JunitTestMain.java

Index: testing/android/junit/java/src/org/chromium/testing/local/JunitTestMain.java
diff --git a/testing/android/junit/java/src/org/chromium/testing/local/JunitTestMain.java b/testing/android/junit/java/src/org/chromium/testing/local/JunitTestMain.java
index 3a305faff5f8dd6eb4abf8a0042acd0494b44d7c..b242a3494fbf49cd0f34c9a2b014b86a6e0bba26 100644
--- a/testing/android/junit/java/src/org/chromium/testing/local/JunitTestMain.java
+++ b/testing/android/junit/java/src/org/chromium/testing/local/JunitTestMain.java
@@ -32,10 +32,19 @@ public final class JunitTestMain {
     /**
      *  Finds all classes on the class path annotated with RunWith.
      */
-    public static Class[] findClassesFromClasspath() {
+    public static Class[] findClassesFromClasspath(String[] testJars) {
         String[] jarPaths = COLON.split(System.getProperty("java.class.path"));
+        LinkedList<String> testJarPaths = new LinkedList<String>();

[jbudorick, 2015/04/02 14:21:43]

I know I'm responsible for the code below that you based this on, but this
should probably be something like:

  List<String> testJarPaths = new ArrayList<String>(testJars.length);

(and similarly for classes below)

[mikecase (-- gone --), 2015/04/02 17:11:40]

Done.

+        for (String testJar: testJars) {
+            for (String jarPath: jarPaths) {
+                if (jarPath.endsWith(testJar)) {
+                    testJarPaths.add(jarPath);
+                    break;
+                }
+            }
+        }
         LinkedList<Class> classes = new LinkedList<Class>();
-        for (String jp : jarPaths) {
+        for (String jp : testJarPaths) {
             try {
                 JarFile jf = new JarFile(jp);
                 for (Enumeration<JarEntry> eje = jf.entries(); eje.hasMoreElements();) {
@@ -80,8 +89,9 @@ public final class JunitTestMain {
         core.addListener(new GtestListener(gtestLogger));
         JsonLogger jsonLogger = new JsonLogger(parser.getJsonOutputFile());
         core.addListener(new JsonListener(jsonLogger));
-        Class[] classes = findClassesFromClasspath();
+        Class[] classes = findClassesFromClasspath(parser.getTestJars());
         Request testRequest = Request.classes(new GtestComputer(gtestLogger), classes);
+
         for (String packageFilter : parser.getPackageFilters()) {
             testRequest = testRequest.filterWith(new PackageFilter(packageFilter));
         }