Deleted OS_WIN and all Windows specific files from base.

base/win/scoped_handle.h

-// Copyright (c) 2012 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 BASE_WIN_SCOPED_HANDLE_H_
-#define BASE_WIN_SCOPED_HANDLE_H_
-
-#include <windows.h>
-
-#include "base/base_export.h"
-#include "base/basictypes.h"
-#include "base/location.h"
-#include "base/logging.h"
-#include "base/move.h"
-
-// TODO(rvargas): remove this with the rest of the verifier.
-#if defined(COMPILER_MSVC)
-#include <intrin.h>
-#define BASE_WIN_GET_CALLER _ReturnAddress()
-#elif defined(COMPILER_GCC)
-#define BASE_WIN_GET_CALLER __builtin_extract_return_addr(\\
-    __builtin_return_address(0))
-#endif
-
-namespace base {
-namespace win {
-
-// Generic wrapper for raw handles that takes care of closing handles
-// automatically. The class interface follows the style of
-// the ScopedFILE class with one addition:
-//   - IsValid() method can tolerate multiple invalid handle values such as NULL
-//     and INVALID_HANDLE_VALUE (-1) for Win32 handles.
-template <class Traits, class Verifier>
-class GenericScopedHandle {
-  MOVE_ONLY_TYPE_FOR_CPP_03(GenericScopedHandle, RValue)
-
- public:
-  typedef typename Traits::Handle Handle;
-
-  GenericScopedHandle() : handle_(Traits::NullHandle()) {}
-
-  explicit GenericScopedHandle(Handle handle) : handle_(Traits::NullHandle()) {
-    Set(handle);
-  }
-
-  // Move constructor for C++03 move emulation of this type.
-  GenericScopedHandle(RValue other) : handle_(Traits::NullHandle()) {
-    Set(other.object->Take());
-  }
-
-  ~GenericScopedHandle() {
-    Close();
-  }
-
-  bool IsValid() const {
-    return Traits::IsHandleValid(handle_);
-  }
-
-  // Move operator= for C++03 move emulation of this type.
-  GenericScopedHandle& operator=(RValue other) {
-    if (this != other.object) {
-      Set(other.object->Take());
-    }
-    return *this;
-  }
-
-  void Set(Handle handle) {
-    if (handle_ != handle) {
-      Close();
-
-      if (Traits::IsHandleValid(handle)) {
-        handle_ = handle;
-        Verifier::StartTracking(handle, this, BASE_WIN_GET_CALLER,
-                                tracked_objects::GetProgramCounter());
-      }
-    }
-  }
-
-  Handle Get() const {
-    return handle_;
-  }
-
-  // Transfers ownership away from this object.
-  Handle Take() {
-    Handle temp = handle_;
-    handle_ = Traits::NullHandle();
-    if (Traits::IsHandleValid(temp)) {
-      Verifier::StopTracking(temp, this, BASE_WIN_GET_CALLER,
-                             tracked_objects::GetProgramCounter());
-    }
-    return temp;
-  }
-
-  // Explicitly closes the owned handle.
-  void Close() {
-    if (Traits::IsHandleValid(handle_)) {
-      Verifier::StopTracking(handle_, this, BASE_WIN_GET_CALLER,
-                             tracked_objects::GetProgramCounter());
-
-      Traits::CloseHandle(handle_);
-      handle_ = Traits::NullHandle();
-    }
-  }
-
- private:
-  Handle handle_;
-};
-
-#undef BASE_WIN_GET_CALLER
-
-// The traits class for Win32 handles that can be closed via CloseHandle() API.
-class HandleTraits {
- public:
-  typedef HANDLE Handle;
-
-  // Closes the handle.
-  static bool BASE_EXPORT CloseHandle(HANDLE handle);
-
-  // Returns true if the handle value is valid.
-  static bool IsHandleValid(HANDLE handle) {
-    return handle != NULL && handle != INVALID_HANDLE_VALUE;
-  }
-
-  // Returns NULL handle value.
-  static HANDLE NullHandle() {
-    return NULL;
-  }
-
- private:
-  DISALLOW_IMPLICIT_CONSTRUCTORS(HandleTraits);
-};
-
-// Do-nothing verifier.
-class DummyVerifierTraits {
- public:
-  typedef HANDLE Handle;
-
-  static void StartTracking(HANDLE handle, const void* owner,
-                            const void* pc1, const void* pc2) {}
-  static void StopTracking(HANDLE handle, const void* owner,
-                           const void* pc1, const void* pc2) {}
-
- private:
-  DISALLOW_IMPLICIT_CONSTRUCTORS(DummyVerifierTraits);
-};
-
-// Performs actual run-time tracking.
-class BASE_EXPORT VerifierTraits {
- public:
-  typedef HANDLE Handle;
-
-  static void StartTracking(HANDLE handle, const void* owner,
-                            const void* pc1, const void* pc2);
-  static void StopTracking(HANDLE handle, const void* owner,
-                           const void* pc1, const void* pc2);
-
- private:
-  DISALLOW_IMPLICIT_CONSTRUCTORS(VerifierTraits);
-};
-
-typedef GenericScopedHandle<HandleTraits, VerifierTraits> ScopedHandle;
-
-// This function may be called by the embedder to disable the use of
-// VerifierTraits at runtime. It has no effect if DummyVerifierTraits is used
-// for ScopedHandle.
-void BASE_EXPORT DisableHandleVerifier();
-
-// This should be called whenever the OS is closing a handle, if extended
-// verification of improper handle closing is desired. If |handle| is being
-// tracked by the handle verifier and ScopedHandle is not the one closing it,
-// a CHECK is generated.
-void BASE_EXPORT OnHandleBeingClosed(HANDLE handle);
-
-}  // namespace win
-}  // namespace base
-
-#endif  // BASE_WIN_SCOPED_HANDLE_H_