Index: chrome_frame/dll_redirector.h |
diff --git a/chrome_frame/dll_redirector.h b/chrome_frame/dll_redirector.h |
deleted file mode 100644 |
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--- a/chrome_frame/dll_redirector.h |
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-// Copyright (c) 2011 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 CHROME_FRAME_DLL_REDIRECTOR_H_ |
-#define CHROME_FRAME_DLL_REDIRECTOR_H_ |
- |
-#include <ObjBase.h> |
-#include <windows.h> |
-#include <string> |
- |
-#include "base/basictypes.h" |
-#include "base/memory/scoped_ptr.h" |
-#include "base/memory/shared_memory.h" |
-#include "base/memory/singleton.h" |
- |
-// Forward |
-namespace ATL { |
-class CSecurityAttributes; |
-} |
- |
-namespace base { |
-class Version; |
-} |
- |
-// A singleton class that provides a facility to register the version of the |
-// current module as the only version that should be loaded system-wide. If |
-// this module is not the first instance loaded in the system, then the version |
-// that loaded first will be delegated to. This makes a few assumptions: |
-// 1) That different versions of the module this code is in reside in |
-// neighbouring versioned directories, e.g. |
-// C:\foo\bar\1.2.3.4\my_module.dll |
-// C:\foo\bar\1.2.3.5\my_module.dll |
-// 2) That the instance of this class will outlive the module that may be |
-// delegated to. That is to say, that this class only guarantees that the |
-// module is loaded as long as this instance is active. |
-// 3) The module this is compiled into is built with version info. |
-class DllRedirector { |
- public: |
- // Returns the singleton instance. |
- static DllRedirector* GetInstance(); |
- |
- virtual ~DllRedirector(); |
- |
- // Attempts to register this Chrome Frame version as the first loaded version |
- // on the system. If this succeeds, return true. If it fails, it returns |
- // false meaning that there is another version already loaded somewhere and |
- // the caller should delegate to that version instead. |
- bool DllRedirector::RegisterAsFirstCFModule(); |
- |
- // Unregisters the well known window class if we registered it earlier. |
- // This is intended to be called from DllMain under PROCESS_DETACH. |
- void DllRedirector::UnregisterAsFirstCFModule(); |
- |
- // Helper function to return the DllGetClassObject function pointer from |
- // the given module. This function will return NULL unless |
- // RegisterAsFirstCFModule has been called first and returned false |
- // indicating that another module was first in. |
- // |
- // On success, the return value is non-null and the first-in module will have |
- // had its reference count incremented. |
- LPFNGETCLASSOBJECT GetDllGetClassObjectPtr(); |
- |
- protected: |
- DllRedirector(); |
- friend struct DefaultSingletonTraits<DllRedirector>; |
- |
- // Constructor used for tests. |
- explicit DllRedirector(const char* shared_memory_name); |
- |
- // Returns an HMODULE to the version of the module that should be loaded. |
- virtual HMODULE GetFirstModule(); |
- |
- // Returns the version of the current module or NULL if none can be found. |
- // The caller must free the returned version. |
- virtual base::Version* GetCurrentModuleVersion(); |
- |
- // Attempt to load the specified version dll. Finds it by walking up one |
- // directory from our current module's location, then appending the newly |
- // found version number. The Version class in base will have ensured that we |
- // actually have a valid version and not e.g. ..\..\..\..\MyEvilFolder\. |
- virtual HMODULE LoadVersionedModule(base::Version* version); |
- |
- // Builds the necessary SECURITY_ATTRIBUTES to allow low integrity access |
- // to an object. Returns true on success, false otherwise. |
- virtual bool BuildSecurityAttributesForLock( |
- ATL::CSecurityAttributes* sec_attr); |
- |
- // Attempts to change the permissions on the given file mapping to read only. |
- // Returns true on success, false otherwise. |
- virtual bool SetFileMappingToReadOnly(base::SharedMemoryHandle mapping); |
- |
- // Shared memory segment that contains the version beacon. |
- scoped_ptr<base::SharedMemory> shared_memory_; |
- |
- // The current version of the DLL to be loaded. |
- scoped_ptr<base::Version> dll_version_; |
- |
- // The handle to the first version of this module that was loaded. This |
- // may refer to the current module, or another version of the same module |
- // that we go and load. |
- HMODULE first_module_handle_; |
- |
- // Used for tests to override the name of the shared memory segment. |
- std::string shared_memory_name_; |
- |
- friend class ModuleUtilsTest; |
- |
- DISALLOW_COPY_AND_ASSIGN(DllRedirector); |
-}; |
- |
-#endif // CHROME_FRAME_DLL_REDIRECTOR_H_ |