A better fix for scaling issue.

printing/custom_scaling.cc

-// 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 "printing/custom_scaling.h"
-
-#include "base/threading/thread_local.h"
-
-namespace printing {
-
-static base::ThreadLocalPointer<double> gPrintingPageScale;
-
-bool GetCustomPrintingPageScale(double* scale) {
-  double* ptr = gPrintingPageScale.Get();
-  if (ptr != NULL) {
-    *scale = *ptr;
-  }
-  return ptr != NULL;
-}
-
-void SetCustomPrintingPageScale(double scale) {
-  ClearCustomPrintingPageScale();
-  double* ptr = new double;
-  *ptr = scale;
-  gPrintingPageScale.Set(ptr);
-}
-
-void ClearCustomPrintingPageScale() {
-  double* ptr = gPrintingPageScale.Get();
-  if (ptr != NULL) {
-    delete ptr;
-  }
-  gPrintingPageScale.Set(NULL);
-}
-
-}  // namespace printing
-