Add LoadState reporting to the mojo proxy resolver.

net/proxy/mojo_proxy_resolver_impl.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_MOJO_PROXY_RESOLVER_IMPL_H_
 #define NET_PROXY_MOJO_PROXY_RESOLVER_IMPL_H_
 
+#include <map>
 #include <queue>
 #include <set>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "net/interfaces/proxy_resolver_service.mojom.h"
+#include "net/proxy/proxy_resolver.h"
 
 namespace net {
 
-class ProxyResolver;
-class ProxyResolverScriptData;
-
 class MojoProxyResolverImpl : public interfaces::ProxyResolver {
  public:
   explicit MojoProxyResolverImpl(scoped_ptr<net::ProxyResolver> resolver);
 
   ~MojoProxyResolverImpl() override;
 
+  // Invoked when the LoadState of a request changes.
+  void LoadStateChanged(net::ProxyResolver::RequestHandle handle,
+                        LoadState load_state);
+
  private:
   class Job;
 
   struct SetPacScriptRequest {
     SetPacScriptRequest(
         const scoped_refptr<ProxyResolverScriptData>& script_data,
         const mojo::Callback<void(int32_t)>& callback);
     ~SetPacScriptRequest();
 
     // The script data for this request.
@@ skipping 10 matching lines @@
       const mojo::String& url,
       interfaces::ProxyResolverRequestClientPtr client) override;
 
   void DeleteJob(Job* job);
 
   void StartSetPacScript();
   void SetPacScriptDone(int result);
 
   scoped_ptr<net::ProxyResolver> resolver_;
   std::set<Job*> resolve_jobs_;
+  std::map<net::ProxyResolver::RequestHandle, Job*> request_handle_to_job_;
 
   std::queue<SetPacScriptRequest> set_pac_script_requests_;
 
   DISALLOW_COPY_AND_ASSIGN(MojoProxyResolverImpl);
 };
 
 }  // namespace net
 
 #endif  // NET_PROXY_MOJO_PROXY_RESOLVER_IMPL_H_