[App Shell] Port app_shell to windows aura.

apps/shell/app/shell_main.cc

Index: apps/shell/app/shell_main.cc
diff --git a/apps/shell/app/shell_main.cc b/apps/shell/app/shell_main.cc
index c81cfa0e1622dbadb240d9ca5e2d330224def6ff..687c61be5fb9ff776fe2c1289a1d068dfcefd1ca 100644
--- a/apps/shell/app/shell_main.cc
+++ b/apps/shell/app/shell_main.cc
@@ -5,7 +5,25 @@
 #include "apps/shell/app/shell_main_delegate.h"
 #include "content/public/app/content_main.h"
 
+#if defined(OS_WIN)
+#include "content/public/app/startup_helper_win.h"
+#include "sandbox/win/src/sandbox_types.h"
+#endif
+
+#if defined(OS_WIN)
+
+int APIENTRY wWinMain(HINSTANCE instance, HINSTANCE, wchar_t*, int) {
+  sandbox::SandboxInterfaceInfo sandbox_info = {0};
+  content::InitializeSandboxInfo(&sandbox_info);
+  apps::ShellMainDelegate delegate;
+  return content::ContentMain(instance, &sandbox_info, &delegate);
+}
+
+#else
+
 int main(int argc, const char** argv) {
   apps::ShellMainDelegate delegate;
   return content::ContentMain(argc, argv, &delegate);
 }
+
+#endif  // OS_WIN