Simplify mojo_shell since it's now only used for Mandoline.

mojo/application/application_runner_chromium.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "mojo/application/application_runner_chromium.h"
 
 #include "base/at_exit.h"
 #include "base/command_line.h"
 #include "base/debug/stack_trace.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "mojo/common/message_pump_mojo.h"
 #include "mojo/public/cpp/application/application_delegate.h"
 #include "mojo/public/cpp/application/application_impl.h"
 
+int g_argc;
+const char* const* g_argv;
+#if !defined(OS_WIN)
+extern "C" {
+__attribute__((visibility("default"))) void InitCommandLineArgs(
+    int argc, const char* const* argv) {
+  g_argc = argc;
+  g_argv = argv;
+}
+}
+#endif
+
 namespace mojo {
 
 // static
 void ApplicationImpl::Terminate() {
   if (base::MessageLoop::current()->is_running())
     base::MessageLoop::current()->Quit();
 }
 
 ApplicationRunnerChromium::ApplicationRunnerChromium(
     ApplicationDelegate* delegate)
     : delegate_(scoped_ptr<ApplicationDelegate>(delegate)),
       message_loop_type_(base::MessageLoop::TYPE_CUSTOM),
       has_run_(false) {}
 
 ApplicationRunnerChromium::~ApplicationRunnerChromium() {}
 
+void ApplicationRunnerChromium::InitBaseCommandLine() {
+  base::CommandLine::Init(g_argc, g_argv);
+}
+
 void ApplicationRunnerChromium::set_message_loop_type(
     base::MessageLoop::Type type) {
   DCHECK_NE(base::MessageLoop::TYPE_CUSTOM, type);
   DCHECK(!has_run_);
 
   message_loop_type_ = type;
 }
 
 MojoResult ApplicationRunnerChromium::Run(
     MojoHandle application_request_handle) {
   DCHECK(!has_run_);
   has_run_ = true;
 
-  base::CommandLine::Init(0, NULL);
+  InitBaseCommandLine();
   base::AtExitManager at_exit;
 
 #ifndef NDEBUG
   base::debug::EnableInProcessStackDumping();
 #endif
 
   {
     scoped_ptr<base::MessageLoop> loop;
     if (message_loop_type_ == base::MessageLoop::TYPE_CUSTOM)
       loop.reset(new base::MessageLoop(common::MessagePumpMojo::Create()));
     else
       loop.reset(new base::MessageLoop(message_loop_type_));
 
     ApplicationImpl impl(delegate_.get(),
                          MakeRequest<Application>(MakeScopedHandle(
                              MessagePipeHandle(application_request_handle))));
     loop->Run();
   }
   delegate_.reset();
   return MOJO_RESULT_OK;
 }
 
 }  // namespace mojo