Revert of Revert of [Android] JUnit runner + gyp changes.

build/android/gyp/jar.py

Index: build/android/gyp/jar.py
diff --git a/build/android/gyp/jar.py b/build/android/gyp/jar.py
index d3636d71418e2e9038980e096c51bf5093b2da21..17f968c3e893044e44e0babea896b7e55fddbe88 100755
--- a/build/android/gyp/jar.py
+++ b/build/android/gyp/jar.py
@@ -12,7 +12,8 @@
 from util import build_utils
 from util import md5_check
 
-def Jar(class_files, classes_dir, jar_path):
+
+def Jar(class_files, classes_dir, jar_path, manifest_file=None):
   jar_path = os.path.abspath(jar_path)
 
   # The paths of the files in the jar will be the same as they are passed in to
@@ -20,7 +21,11 @@
   # options.classes_dir so the .class file paths in the jar are correct.
   jar_cwd = classes_dir
   class_files_rel = [os.path.relpath(f, jar_cwd) for f in class_files]
-  jar_cmd = ['jar', 'cf0', jar_path] + class_files_rel
+  jar_cmd = ['jar', 'cf0', jar_path]
+  if manifest_file:
+    jar_cmd[1] += 'm'
+    jar_cmd.append(os.path.abspath(manifest_file))
+  jar_cmd.extend(class_files_rel)
 
   record_path = '%s.md5.stamp' % jar_path
   md5_check.CallAndRecordIfStale(
@@ -34,13 +39,14 @@
   build_utils.Touch(jar_path, fail_if_missing=True)
 
 
-def JarDirectory(classes_dir, excluded_classes, jar_path):
+def JarDirectory(classes_dir, excluded_classes, jar_path, manifest_file=None):
   class_files = build_utils.FindInDirectory(classes_dir, '*.class')
   for exclude in excluded_classes:
     class_files = filter(
         lambda f: not fnmatch.fnmatch(f, exclude), class_files)
 
-  Jar(class_files, classes_dir, jar_path)
+  Jar(class_files, classes_dir, jar_path, manifest_file=manifest_file)
+
 
 def main():
   parser = optparse.OptionParser()
@@ -52,8 +58,12 @@
 
   options, _ = parser.parse_args()
 
+  if options.excluded_classes:
+    excluded_classes = build_utils.ParseGypList(options.excluded_classes)
+  else:
+    excluded_classes = []
   JarDirectory(options.classes_dir,
-               build_utils.ParseGypList(options.excluded_classes),
+               excluded_classes,
                options.jar_path)
 
   if options.stamp: