Linux: Breakpad updates.

breakpad/linux/linux_dumper.h

 // Copyright (c) 2009, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
@@ skipping 47 matching lines @@
   static const unsigned kNumDebugRegisters = 8;
   debugreg_t dregs[8];
 #endif
 };
 
 // One of these is produced for each mapping in the process (i.e. line in
 // /proc/$x/maps).
 struct MappingInfo {
   uintptr_t start_addr;
   size_t size;
+  size_t offset;  // offset into the backed file.
   char name[NAME_MAX];
 };
 
 class LinuxDumper {
  public:
   explicit LinuxDumper(pid_t pid);
 
   // Parse the data for |threads| and |mappings|.
   bool Init();
 
@@ skipping 31 matching lines @@
   mutable PageAllocator allocator_;
 
   bool threads_suspened_;
   wasteful_vector<pid_t> threads_;  // the ids of all the threads
   wasteful_vector<MappingInfo*> mappings_;  // info from /proc/<pid>/maps
 };
 
 }  // namespace google_breakpad
 
 #endif  // CLIENT_LINUX_HANDLER_LINUX_DUMPER_H_