beginnings of metro viewer process

ui/aura/demo/demo_main.cc

 // Copyright (c) 2012 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 "base/at_exit.h"
 #include "base/command_line.h"
 #include "base/i18n/icu_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "third_party/skia/include/core/SkXfermode.h"
 #include "ui/aura/client/stacking_client.h"
 #include "ui/aura/env.h"
 #include "ui/aura/root_window.h"
 #include "ui/aura/shared/root_window_capture_client.h"
 #include "ui/aura/single_display_manager.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_delegate.h"
 #include "ui/base/events/event.h"
 #include "ui/base/hit_test.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/base/ui_base_paths.h"
 #include "ui/compositor/test/compositor_test_support.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/rect.h"
 
 #if defined(USE_X11)
 #include "base/message_pump_aurax11.h"
 #endif
 
+extern int ViewerProcessMain();
+
 namespace {
 
 // Trivial WindowDelegate implementation that draws a colored background.
 class DemoWindowDelegate : public aura::WindowDelegate {
  public:
   explicit DemoWindowDelegate(SkColor color) : color_(color) {}
 
   // Overridden from WindowDelegate:
   virtual gfx::Size GetMinimumSize() const OVERRIDE {
     return gfx::Size();
@@ skipping 71 matching lines @@
   }
 
  private:
   aura::RootWindow* root_window_;
 
   scoped_ptr<aura::shared::RootWindowCaptureClient> capture_client_;
 
   DISALLOW_COPY_AND_ASSIGN(DemoStackingClient);
 };
 
-}  // namespace
-
-int main(int argc, char** argv) {
-  CommandLine::Init(argc, argv);
-
-  // The exit manager is in charge of calling the dtors of singleton objects.
-  base::AtExitManager exit_manager;
-
-  ui::RegisterPathProvider();
-  icu_util::Initialize();
-  ResourceBundle::InitSharedInstanceWithLocale("en-US", NULL);
-
+int DemoMain() {
   // Create the message-loop here before creating the root window.
   MessageLoop message_loop(MessageLoop::TYPE_UI);
   ui::CompositorTestSupport::Initialize();
   aura::Env::GetInstance()->SetDisplayManager(new aura::SingleDisplayManager);
   scoped_ptr<aura::RootWindow> root_window(
       aura::DisplayManager::CreateRootWindowForPrimaryDisplay());
   scoped_ptr<DemoStackingClient> stacking_client(new DemoStackingClient(
       root_window.get()));
 
   // Create a hierarchy of test windows.
@@ skipping 21 matching lines @@
   window3.Show();
   window3.SetParent(&window2);
 
   root_window->ShowRootWindow();
   MessageLoopForUI::current()->Run();
 
   ui::CompositorTestSupport::Terminate();
 
   return 0;
 }
+
+int RunMain() {
+  // TODO(scottmg): Something not crappy.
+  if (CommandLine::ForCurrentProcess()->HasSwitch("viewer")) {
+    return ViewerProcessMain();
+  } else {
+    return DemoMain();
+  }
+}
+
+}  // namespace
+
+int main(int argc, char** argv) {
+  CommandLine::Init(argc, argv);
+
+  // The exit manager is in charge of calling the dtors of singleton objects.
+  base::AtExitManager exit_manager;
+
+  ui::RegisterPathProvider();
+  icu_util::Initialize();
+  ResourceBundle::InitSharedInstanceWithLocale("en-US", NULL);
+
+  return RunMain();
+}