Pass command line args to apptests

mojo/public/cpp/application/application_test_base.h

Index: mojo/public/cpp/application/application_test_base.h
diff --git a/mojo/public/cpp/application/application_test_base.h b/mojo/public/cpp/application/application_test_base.h
index 2f400a414ba27a128e69334182bb46d73198bc71..dab508f8e1844ddc0a52777a00e5de3f730de180 100644
--- a/mojo/public/cpp/application/application_test_base.h
+++ b/mojo/public/cpp/application/application_test_base.h
@@ -21,6 +21,9 @@ namespace test {
 ScopedMessagePipeHandle PassShellHandle();
 void SetShellHandle(ScopedMessagePipeHandle handle);
 
+const Array<String>& Args();
+void InitializeArgs(int argc, std::vector<const char*> argv);
+
 // A GTEST base class for application testing executed in mojo_shell.
 class ApplicationTestBase : public testing::Test {
  public: