Initialize command line arguments for Mojo apptests.

mojo/application/application_runner_chromium.cc

Index: mojo/application/application_runner_chromium.cc
diff --git a/mojo/application/application_runner_chromium.cc b/mojo/application/application_runner_chromium.cc
index ce104f0052232f9ac2cc64079c7b14d0eb27b573..7dd60054e721b85ef36935e8301de05781894d26 100644
--- a/mojo/application/application_runner_chromium.cc
+++ b/mojo/application/application_runner_chromium.cc
@@ -19,6 +19,7 @@ const char* const* g_argv;
 extern "C" {
 __attribute__((visibility("default"))) void InitCommandLineArgs(
     int argc, const char* const* argv) {
+  printf("MSW InitCommandLineArgs\n");
   g_argc = argc;
   g_argv = argv;
 }
@@ -41,6 +42,12 @@ ApplicationRunnerChromium::ApplicationRunnerChromium(
 
 ApplicationRunnerChromium::~ApplicationRunnerChromium() {}
 
+// static
+void ApplicationRunnerChromium::InitBaseCommandLine() {
+  printf("MSW ApplicationRunnerChromium::InitBaseCommandLine\n");
+  base::CommandLine::Init(g_argc, g_argv);
+}
+
 void ApplicationRunnerChromium::set_message_loop_type(
     base::MessageLoop::Type type) {
   DCHECK_NE(base::MessageLoop::TYPE_CUSTOM, type);
@@ -54,7 +61,7 @@ MojoResult ApplicationRunnerChromium::Run(
   DCHECK(!has_run_);
   has_run_ = true;
 
-  base::CommandLine::Init(g_argc, g_argv);
+  InitBaseCommandLine();
   base::AtExitManager at_exit;
 
 #ifndef NDEBUG