Revert 121840 - Make scoped dc objects smarter

base/win/scoped_hdc.cc

Index: base/win/scoped_hdc.cc
===================================================================
--- base/win/scoped_hdc.cc	(revision 121842)
+++ base/win/scoped_hdc.cc	(working copy)
@@ -1,116 +0,0 @@
-// 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.
-
-#include "base/win/scoped_hdc.h"
-
-#include "base/logging.h"
-
-namespace base {
-namespace win {
-
-ScopedDC::ScopedDC(HDC hdc)
-    : hdc_(hdc),
-      bitmap_(0),
-      font_(0),
-      brush_(0),
-      pen_(0),
-      region_(0) {
-}
-
-ScopedDC::~ScopedDC() {}
-
-void ScopedDC::SelectBitmap(HBITMAP bitmap) {
-  Select(bitmap, &bitmap_);
-}
-
-void ScopedDC::SelectFont(HFONT font) {
-  Select(font, &font_);
-}
-
-void ScopedDC::SelectBrush(HBRUSH brush) {
-  Select(brush, &brush_);
-}
-
-void ScopedDC::SelectPen(HPEN pen) {
-  Select(pen, &pen_);
-}
-
-void ScopedDC::SelectRegion(HRGN region) {
-  Select(region, &region_);
-}
-
-void ScopedDC::Close() {
-  if (!hdc_)
-    return;
-  ResetObjects();
-  DisposeDC(hdc_);
-}
-
-void ScopedDC::Reset(HDC hdc) {
-  Close();
-  hdc_ = hdc;
-}
-
-void ScopedDC::ResetObjects() {
-  if (bitmap_) {
-    SelectObject(hdc_, bitmap_);
-    bitmap_ = 0;
-  }
-  if (font_) {
-    SelectObject(hdc_, font_);
-    font_ = 0;
-  }
-  if (brush_) {
-    SelectObject(hdc_, brush_);
-    brush_ = 0;
-  }
-  if (pen_) {
-    SelectObject(hdc_, pen_);
-    pen_ = 0;
-  }
-  if (region_) {
-    SelectObject(hdc_, region_);
-    region_ = 0;
-  }
-}
-
-void ScopedDC::Select(HGDIOBJ object, HGDIOBJ* holder) {
-  HGDIOBJ old = SelectObject(hdc_, object);
-  DCHECK(old);
-  // We only want to store the first |old| object.
-  if (!*holder)
-    *holder = old;
-}
-
-ScopedGetDC::ScopedGetDC(HWND hwnd) : ScopedDC(GetDC(hwnd)), hwnd_(hwnd) {
-}
-
-ScopedGetDC::~ScopedGetDC() {
-  Close();
-}
-
-void ScopedGetDC::DisposeDC(HDC hdc) {
-  ReleaseDC(hwnd_, hdc);
-}
-
-ScopedCreateDC::ScopedCreateDC() : ScopedDC(0) {
-}
-
-ScopedCreateDC::ScopedCreateDC(HDC hdc) : ScopedDC(hdc) {
-}
-
-ScopedCreateDC::~ScopedCreateDC() {
-  Close();
-}
-
-void ScopedCreateDC::Set(HDC hdc) {
-  Reset(hdc);
-}
-
-void ScopedCreateDC::DisposeDC(HDC hdc) {
-  DeleteDC(hdc);
-}
-
-}  // namespace win
-}  // namespace base