Make chrome.exe built with ASan/Win work with sandbox enabled

components/nacl/loader/nacl_main_platform_delegate_win.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 "components/nacl/loader/nacl_main_platform_delegate.h"
 
 #include "base/logging.h"
 #include "sandbox/win/src/sandbox.h"
 
 NaClMainPlatformDelegate::NaClMainPlatformDelegate(
     const content::MainFunctionParams& parameters)
     : parameters_(parameters) {
 }
 
 NaClMainPlatformDelegate::~NaClMainPlatformDelegate() {
 }
 
 void NaClMainPlatformDelegate::EnableSandbox() {
   sandbox::TargetServices* target_services =
       parameters_.sandbox_info->target_services;
 
   CHECK(target_services) << "NaCl-Win EnableSandbox: No Target Services!";
   // Cause advapi32 to load before the sandbox is turned on.
   unsigned int dummy_rand;
   rand_s(&dummy_rand);
   // Warm up language subsystems before the sandbox is turned on.
   ::GetUserDefaultLangID();
   ::GetUserDefaultLCID();
+
+#if defined(ADDRESS_SANITIZER)
+    // Bind and leak dbghelp.dll before the token is lowered, otherwise
+    // AddressSanitizer will crash when trying to symbolize a report.
+    CHECK(LoadLibraryA("dbghelp.dll"));
+#endif
+
   // Turn the sandbox on.
   target_services->LowerToken();
 }