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      1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef NET_PROXY_PROXY_RESOLVER_ERROR_OBSERVER_H_
      6 #define NET_PROXY_PROXY_RESOLVER_ERROR_OBSERVER_H_
      7 
      8 #include "base/basictypes.h"
      9 #include "base/strings/string16.h"
     10 #include "net/base/net_export.h"
     11 
     12 namespace net {
     13 
     14 // Interface for observing JavaScript error messages from PAC scripts.
     15 class NET_EXPORT_PRIVATE ProxyResolverErrorObserver {
     16  public:
     17   ProxyResolverErrorObserver() {}
     18   virtual ~ProxyResolverErrorObserver() {}
     19 
     20   // Handler for when an error is encountered. |line_number| may be -1
     21   // if a line number is not applicable to this error. |error| is a message
     22   // describing the error.
     23   //
     24   // Note on threading: This may get called from a worker thread. If the
     25   // backing proxy resolver is ProxyResolverV8Tracing, then it will not
     26   // be called concurrently, however it will be called from a different
     27   // thread than the proxy resolver's origin thread.
     28   virtual void OnPACScriptError(int line_number,
     29                                 const base::string16& error) = 0;
     30 
     31  private:
     32   DISALLOW_COPY_AND_ASSIGN(ProxyResolverErrorObserver);
     33 };
     34 
     35 }  // namespace net
     36 
     37 #endif  // NET_PROXY_PROXY_RESOLVER_ERROR_OBSERVER_H_
     38