[Android] memory_inspector: bug / UI fixes.

tools/memory_inspector/run_tests

Index: tools/memory_inspector/run_tests
diff --git a/tools/memory_inspector/run_tests b/tools/memory_inspector/run_tests
index c19068381e1105d4e91a10955c640884965adca4..522ce80f362df0adda887d50d16c445a8192f132 100755
--- a/tools/memory_inspector/run_tests
+++ b/tools/memory_inspector/run_tests
@@ -16,8 +16,9 @@ if __name__ == '__main__':
 
   suite = unittest.TestSuite()
   loader = unittest.TestLoader()
+  pattern = '*%s*_unittest.py' % ('' if len(sys.argv) < 2 else sys.argv[1])
   suite.addTests(loader.discover(start_dir=memory_inspector.ROOT_DIR,
-                                 pattern='*_unittest.py'))
+                                 pattern=pattern))
   res = unittest.TextTestRunner(verbosity=2).run(suite)
   if res.wasSuccessful():
     sys.exit(0)