Make ApplicationImpl::args() be a std::vector<std::string>

mojo/public/cpp/application/lib/application_impl.cc

Index: mojo/public/cpp/application/lib/application_impl.cc
diff --git a/mojo/public/cpp/application/lib/application_impl.cc b/mojo/public/cpp/application/lib/application_impl.cc
index e237aeff7310a8d5cdcc5cee985fe19c64d338ee..85218379b35d2c9d00070f7f4c839ece72b636f2 100644
--- a/mojo/public/cpp/application/lib/application_impl.cc
+++ b/mojo/public/cpp/application/lib/application_impl.cc
@@ -57,7 +57,7 @@ ApplicationImpl::~ApplicationImpl() {
 void ApplicationImpl::Initialize(Array<String> args) {
   MOJO_CHECK(!initialized_);
   initialized_ = true;
-  args_ = args.Pass();
+  args_ = args.To<std::vector<std::string>>();
   delegate_->Initialize(this);
 }