Remove Chrome Frame code and resources.

chrome_frame/dll_redirector.h

-// 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_