Handle ERR_PAC_SCRIPT_TERMINATED in ProxyService.

net/proxy/proxy_resolver_mojo.h

 // Copyright 2015 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.
 
 #ifndef NET_PROXY_PROXY_RESOLVER_MOJO_H_
 #define NET_PROXY_PROXY_RESOLVER_MOJO_H_
 
 #include <set>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
 #include "base/threading/thread_checker.h"
 #include "net/base/completion_callback.h"
 #include "net/base/load_states.h"
 #include "net/interfaces/host_resolver_service.mojom.h"
 #include "net/interfaces/proxy_resolver_service.mojom.h"
 #include "net/proxy/proxy_resolver.h"
 #include "net/proxy/proxy_resolver_script_data.h"
 #include "third_party/mojo/src/mojo/public/cpp/bindings/binding.h"
 
 class GURL;
@@ skipping 67 matching lines @@
 
   // DNS resolver, saved for creating a new Mojo proxy resolver when the
   // existing one disconnects (i.e. when utility process crashes).
   HostResolver* host_resolver_;
 
   std::set<Job*> pending_jobs_;
   net::CancelableCompletionCallback set_pac_script_callback_;
 
   base::ThreadChecker thread_checker_;
 
+  base::WeakPtrFactory<ProxyResolverMojo> weak_factory_;

[eroman, 2015/04/15 00:56:52]

Please think about using WeakPointer less rather than more. It makes ownership
and lifetimes hard to reason about.

[Sam McNally, 2015/04/15 04:35:56]

Removed it.

+
   DISALLOW_COPY_AND_ASSIGN(ProxyResolverMojo);
 };
 
 }  // namespace net
 
 #endif  // NET_PROXY_PROXY_RESOLVER_MOJO_H_