Refactor handler/main for Windows, implement CrashHandlerExceptionServer

snapshot/win/process_snapshot_win.h

 // Copyright 2015 The Crashpad Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
@@ skipping 41 matching lines @@
   //! \brief Initializes the object.
   //!
   //! \param[in] process The handle to create a snapshot from.
   //!
   //! \return `true` if the snapshot could be created, `false` otherwise with
   //!     an appropriate message logged.
   bool Initialize(HANDLE process);
 
   //! \brief Initializes the object's exception.
   //!
-  //! This populates the data to be returned by Exception(). The parameters may
-  //! be passed directly through from a Windows exception handler.
+  //! This populates the data to be returned by Exception().
   //!
   //! This method must not be called until after a successful call to
   //! Initialize().
   //!
+  //! \param[in] exception_information_address The address in the client
+  //!     process's address space of an ExceptionInformation structure.
+  //!
   //! \return `true` if the exception information could be initialized, `false`
   //!     otherwise with an appropriate message logged. When this method returns
   //!     `false`, the ProcessSnapshotWin object's validity remains unchanged.
-  bool InitializeException(DWORD thread_id,
-                           WinVMAddress exception_pointers);
+  bool InitializeException(WinVMAddress exception_information_address);
 
   //! \brief Sets the value to be returned by ReportID().
   //!
   //! The crash report ID is under the control of the snapshot producer, which
   //! may call this method to set the report ID. If this is not done, ReportID()
   //! will return an identifier consisting entirely of zeroes.
   void SetReportID(const UUID& report_id) { report_id_ = report_id; }
 
   //! \brief Sets the value to be returned by ClientID().
   //!
@@ skipping 53 matching lines @@
   std::map<std::string, std::string> annotations_simple_map_;
   timeval snapshot_time_;
   InitializationStateDcheck initialized_;
 
   DISALLOW_COPY_AND_ASSIGN(ProcessSnapshotWin);
 };
 
 }  // namespace crashpad
 
 #endif  // CRASHPAD_SNAPSHOT_WIN_PROCESS_SNAPSHOT_WIN_H_