Keep only base/extractor.[cc|h].

base/dynamic_link_dbghelp.h

-// Copyright 2003-2009 Google Inc.
-//
-// 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,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-// ========================================================================
-//
-// dynamic loading of dbghelp dll functions
-//
-
-#ifndef OMAHA_COMMON_DYNAMIC_LINK_DBGHELP_H_
-#define OMAHA_COMMON_DYNAMIC_LINK_DBGHELP_H_
-
-#include <dbghelp.h>
-
-namespace omaha {
-
-class Dbghelp {
- public:
-  static BOOL (CALLBACK *SymInitialize)(HANDLE, PCSTR, BOOL);
-  static BOOL (CALLBACK *SymCleanup)(HANDLE);
-  static BOOL (CALLBACK *SymEnumSymbols)(HANDLE, ULONG64, PCSTR, PSYM_ENUMERATESYMBOLS_CALLBACK, PVOID);
-  static DWORD (CALLBACK *SymSetOptions)(DWORD);
-  static BOOL (CALLBACK *SymSetContext)(HANDLE, PIMAGEHLP_STACK_FRAME, PIMAGEHLP_CONTEXT);
-  static BOOL (CALLBACK *SymGetLineFromAddr)(HANDLE, DWORD, PDWORD, PIMAGEHLP_LINE);
-  static BOOL (CALLBACK *SymGetLineFromAddr64)(HANDLE, DWORD64, PDWORD, PIMAGEHLP_LINE64);
-  static BOOL (CALLBACK *SymFromAddr)(HANDLE, DWORD64, PDWORD64, PSYMBOL_INFO);
-  static BOOL (CALLBACK *StackWalk64)(DWORD, HANDLE, HANDLE, LPSTACKFRAME64, PVOID, PREAD_PROCESS_MEMORY_ROUTINE64,
-      PFUNCTION_TABLE_ACCESS_ROUTINE64, PGET_MODULE_BASE_ROUTINE64, PTRANSLATE_ADDRESS_ROUTINE64);
-  static BOOL (CALLBACK *StackWalk)(DWORD, HANDLE, HANDLE, LPSTACKFRAME, PVOID, PREAD_PROCESS_MEMORY_ROUTINE,
-      PFUNCTION_TABLE_ACCESS_ROUTINE, PGET_MODULE_BASE_ROUTINE, PTRANSLATE_ADDRESS_ROUTINE);
-  static PVOID (CALLBACK *SymFunctionTableAccess64)(HANDLE, DWORD64);
-  static PVOID (CALLBACK *SymFunctionTableAccess)(HANDLE, DWORD);
-  static DWORD64 (CALLBACK *SymGetModuleBase64)(HANDLE, DWORD64);
-  static DWORD64 (CALLBACK *SymGetModuleBase)(HANDLE, DWORD);
-  static BOOL (CALLBACK *SymGetTypeInfo)(HANDLE, DWORD64, ULONG, IMAGEHLP_SYMBOL_TYPE_INFO, PVOID);
-  static BOOL (CALLBACK *MiniDumpWriteDump)(HANDLE, DWORD, HANDLE, MINIDUMP_TYPE, PMINIDUMP_EXCEPTION_INFORMATION,
-      PMINIDUMP_USER_STREAM_INFORMATION, PMINIDUMP_CALLBACK_INFORMATION);
-
-  static HRESULT Load();
-  static void Unload();
-  static bool Loaded() { return (loaded_state_ == LOAD_SUCCEEDED && library_ != NULL); }
-
- private:
-  // If we tried to load and failed, do not try again.
-  static enum LoadedState {NOT_LOADED, LOAD_FAILED, LOAD_SUCCEEDED};
-
-  static LoadedState loaded_state_;
-  static HINSTANCE library_;
-
-  static void Clear();
-
-  // wrapper around GetProcAddress()
-  template <typename T>
-  static bool GPA(const char * function_name, T& function_pointer);
-
-  DISALLOW_EVIL_CONSTRUCTORS(Dbghelp);
-};
-
-}  // namespace omaha
-
-#endif  // OMAHA_COMMON_DYNAMIC_LINK_DBGHELP_H_