A better fix for scaling issue.

printing/custom_scaling.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 PRINTING_CUSTOM_SCALING_H_
-#define PRINTING_CUSTOM_SCALING_H_
-
-#include "printing/printing_export.h"
-
-namespace printing {
-
-// This set of function allows plugin to set custom printing scale in the
-// thread local storage. It is a hack to pass scale through this, but
-// alternative is to do major refactoring to pass this scale factor all the
-// from plugin through webkit to the upper level.
-// We should definitely revisit this approach in favor of better implementation
-// later. In the mean time, this looks like a simplest way fixing printing
-// issues now.
-
-// Gets custom printing scale from the TLS. Return false if it has not been
-// set.
-PRINTING_EXPORT bool GetCustomPrintingPageScale(double* scale);
-
-// Sets custom printing scale in TLS.
-PRINTING_EXPORT void SetCustomPrintingPageScale(double scale);
-
-// Clears custom printing scale in TLS.
-PRINTING_EXPORT void ClearCustomPrintingPageScale();
-
-}  // namespace printing
-
-#endif  // PRINTING_CUSTOM_SCALING_H_
-