Add infrastructure to run tests on android.

mojo/tools/mojob.py

Index: mojo/tools/mojob.py
diff --git a/mojo/tools/mojob.py b/mojo/tools/mojob.py
index 5170b853882086ed57e6010c64bf5ad66bdfd2b0..f152432e8da5c5d6e50760431a6c9b70e81da5e1 100755
--- a/mojo/tools/mojob.py
+++ b/mojo/tools/mojob.py
@@ -107,12 +107,17 @@ def run_unittests(args):
   out_dir = get_out_dir(args)
   print 'Running unit tests in %s ...' % out_dir
   command = ['python']
-  if platform.system() == 'Linux':
+  if platform.system() == 'Linux' and not args.android:
     command.append('./testing/xvfb.py')
     command.append(out_dir)
 
   command.append(os.path.join('mojo', 'tools', 'test_runner.py'))
-  command.append(os.path.join('mojo', 'tools', 'data', 'unittests'))
+  command.append('--debug' if args.debug else '--release')
+  if args.android:
+    command.append('--android')
+    command.append(os.path.join('mojo', 'tools', 'data', 'android_unittests'))
+  else:
+    command.append(os.path.join('mojo', 'tools', 'data', 'unittests'))
   command.append(out_dir)
   command.append('mojob_test_successes')
   return subprocess.call(command)
@@ -120,7 +125,7 @@ def run_unittests(args):
 
 def run_skytests(args):
   out_dir = get_out_dir(args)
-  if platform.system() != 'Linux':
+  if platform.system() != 'Linux' or args.android:
     return 0
 
   command = []
@@ -144,7 +149,7 @@ def run_pytests(args):
   if exit_code:
     return exit_code
 
-  if platform.system() != 'Linux':
+  if platform.system() != 'Linux' or args.android:
     print ('Python bindings tests are only supported on Linux.')
     return