Updates DCHECK in mojo/runner/context.cc to match reality

mojo/runner/context.cc

 // Copyright 2013 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/runner/context.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <utility>
@@ skipping 206 matching lines @@
                            task_runners_->io_runner(),
                            embedder::ScopedPlatformHandle());
 
   package_manager_ = new shell::PackageManagerImpl(
       shell_file_root, task_runners_->blocking_pool());
   InitContentHandlers(package_manager_, command_line);
 
   RegisterLocalAliases(package_manager_);
 
   scoped_ptr<shell::NativeRunnerFactory> runner_factory;
-  if (command_line.HasSwitch(switches::kEnableMultiprocess)) {
-    runner_factory.reset(
-        new OutOfProcessNativeRunnerFactory(task_runners_->blocking_pool()));
-  } else {
+  if (command_line.HasSwitch(switches::kMojoSingleProcess)) {
 #if defined(COMPONENT_BUILD)
     LOG(ERROR) << "Running Mojo in single process component build, which isn't "
                << "supported because statics in apps interact. Use static build"
                << " or don't pass --single-process.";
 #endif
     runner_factory.reset(
         new InProcessNativeRunnerFactory(task_runners_->blocking_pool()));
+  } else {
+    runner_factory.reset(
+        new OutOfProcessNativeRunnerFactory(task_runners_->blocking_pool()));
   }
   application_manager_.reset(new shell::ApplicationManager(
       make_scoped_ptr(package_manager_), std::move(runner_factory),
       task_runners_->blocking_pool()));
 
   ServiceProviderPtr tracing_services;
   ServiceProviderPtr tracing_exposed_services;
   new TracingServiceProvider(&tracer_, GetProxy(&tracing_exposed_services));
 
   scoped_ptr<shell::ConnectToApplicationParams> params(
@@ skipping 99 matching lines @@
         base::MessageLoop::current()->QuitWhenIdle();
       } else {
         app_complete_callback_.Run();
       }
     }
   }
 }
 
 }  // namespace runner
 }  // namespace mojo