Get headless_shell building on Windows.

headless/lib/browser/headless_browser_impl.cc

Index: headless/lib/browser/headless_browser_impl.cc
diff --git a/headless/lib/browser/headless_browser_impl.cc b/headless/lib/browser/headless_browser_impl.cc
index 876be95cdc802db462bc1876df03d2d11e8597b5..4f21d8c81ab35ef51551fe7ac2edb6de1d4994d2 100644
--- a/headless/lib/browser/headless_browser_impl.cc
+++ b/headless/lib/browser/headless_browser_impl.cc
@@ -26,6 +26,11 @@
 #include "ui/events/devices/device_data_manager.h"
 #include "ui/gfx/geometry/size.h"
 
+#if defined(OS_WIN)
+#include "content/public/app/sandbox_helper_win.h"
+#include "sandbox/win/src/sandbox_types.h"
+#endif
+
 namespace headless {
 namespace {
 
@@ -33,8 +38,10 @@ int RunContentMain(
     HeadlessBrowser::Options options,
     const base::Callback<void(HeadlessBrowser*)>& on_browser_start_callback) {
   content::ContentMainParams params(nullptr);
-  params.argc = options.argc;
-  params.argv = options.argv;
+  sandbox::SandboxInterfaceInfo sandbox_info = {0};

[dvallet, 2017/02/13 03:20:24]

Please change to:
#if defined(OS_WIN)
  sandbox::SandboxInterfaceInfo sandbox_info = {0};
  content::InitializeSandboxInfo(&sandbox_info);
  params.sandbox_info = &sandbox_info;
#elif !defined(OS_ANDROID)
  params.argc = options.argc;
  params.argv = options.argv;
#endif

+  content::InitializeSandboxInfo(&sandbox_info);
+
+  params.sandbox_info = &sandbox_info;
 
   // TODO(skyostil): Implement custom message pumps.
   DCHECK(!options.message_pump);
@@ -189,11 +196,11 @@ HeadlessBrowserContext* HeadlessBrowserImpl::GetBrowserContextForId(
 }
 
 void RunChildProcessIfNeeded(int argc, const char** argv) {
-  base::CommandLine command_line(argc, argv);
+  base::CommandLine command_line(0, nullptr);

[dvallet, 2017/02/13 03:20:24]

Revert thes changes.

   if (!command_line.HasSwitch(switches::kProcessType))
     return;
 
-  HeadlessBrowser::Options::Builder builder(argc, argv);
+  HeadlessBrowser::Options::Builder builder(0, nullptr);

[dvallet, 2017/02/13 03:20:24]

ditto, revert this

   exit(RunContentMain(builder.Build(),
                       base::Callback<void(HeadlessBrowser*)>()));
 }