Have crashpad call ASan's crash handler if present

chrome_elf/chrome_elf_main.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 "chrome_elf/chrome_elf_main.h"
 
 #include <assert.h>
 #include <windows.h>
 
 #include "chrome/install_static/install_details.h"
@@ skipping 37 matching lines @@
 // install_static::InstallDetails::InitializeFromPrimaryModule.
 extern "C" const install_static::InstallDetails::Payload*
 GetInstallDetailsPayload() {
   return install_static::InstallDetails::Get().GetPayload();
 }
 
 BOOL APIENTRY DllMain(HMODULE module, DWORD reason, LPVOID reserved) {
   if (reason == DLL_PROCESS_ATTACH) {
     install_static::InitializeProductDetailsForPrimaryModule();
 
-#if !defined(ADDRESS_SANITIZER)
     // CRT on initialization installs an exception filter which calls
     // TerminateProcess. We need to hook CRT's attempt to set an exception.
-    // NOTE: Do not hook if ASan is present, or ASan will fail to install
-    // its own unhandled exception filter.
     elf_crash::DisableSetUnhandledExceptionFilter();
-#endif  // !defined (ADDRESS_SANITIZER)
 
     install_static::InitializeProcessType();
 
     __try {
       blacklist::Initialize(false);  // Don't force, abort if beacon is present.
     } __except (elf_crash::GenerateCrashDump(GetExceptionInformation())) {
     }
   } else if (reason == DLL_PROCESS_DETACH) {
     elf_crash::ShutdownCrashReporting();
   }
   return TRUE;
 }