Remove ProxyResolver::(Cancel)SetPacScript and LegacyProxyResolverFactory.

net/proxy/proxy_resolver_factory.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_FACTORY_H_
 #define NET_PROXY_PROXY_RESOLVER_FACTORY_H_
 
 #include <set>
 
 #include "base/memory/ref_counted.h"
@@ skipping 37 matching lines @@
   // then the ProxyResolverScriptData passed to CreateProxyResolver() should
   // contain the actual script bytes rather than just the URL.
   bool expects_pac_bytes() const { return expects_pac_bytes_; }
 
  private:
   bool expects_pac_bytes_;
 
   DISALLOW_COPY_AND_ASSIGN(ProxyResolverFactory);
 };
 
-class NET_EXPORT LegacyProxyResolverFactory : public ProxyResolverFactory {
- public:
-  explicit LegacyProxyResolverFactory(bool expects_pac_bytes);
-
-  ~LegacyProxyResolverFactory() override;
-
-  int CreateProxyResolver(
-      const scoped_refptr<ProxyResolverScriptData>& pac_script,
-      scoped_ptr<ProxyResolver>* resolver,
-      const net::CompletionCallback& callback,
-      scoped_ptr<Request>* request) override;
-
-  virtual scoped_ptr<ProxyResolver> CreateProxyResolver() = 0;
-
- private:
-  class Job;
-
-  void RemoveJob(Job* job);
-
-  std::set<Job*> jobs_;
-};
-
 }  // namespace net
 
 #endif  // NET_PROXY_PROXY_RESOLVER_FACTORY_H_