Remove sandbox on Windows.

chrome/app/main_dll_loader_win.cc

Index: chrome/app/main_dll_loader_win.cc
diff --git a/chrome/app/main_dll_loader_win.cc b/chrome/app/main_dll_loader_win.cc
index 8d8f978bd3f3702f464d8a5c1e0ed34cd66ee6a8..8556d2500d10f27eeed3747d40e795ccda250471 100644
--- a/chrome/app/main_dll_loader_win.cc
+++ b/chrome/app/main_dll_loader_win.cc
@@ -46,7 +46,16 @@
 #include "components/startup_metric_utils/common/pre_read_field_trial_utils_win.h"
 #include "content/public/app/sandbox_helper_win.h"
 #include "content/public/common/content_switches.h"
-#include "sandbox/win/src/sandbox.h"
+
+namespace sandbox {
+
+// Contains the pointer to a target or broker service.
+struct SandboxInterfaceInfo {
+  void* broker_services;
+  void* target_services;
+};
+
+}  // namespace sandbox
 
 namespace {
 // The entry point signature of chrome.dll.
@@ -171,7 +180,6 @@ int MainDllLoader::Launch(HINSTANCE instance) {
 
   // Initialize the sandbox services.
   sandbox::SandboxInterfaceInfo sandbox_info = {0};
-  content::InitializeSandboxInfo(&sandbox_info);
 
   dll_ = Load(&file);
   if (!dll_)