Delete the GTK+ port of Chrome.

chrome/browser/printing/printing_gtk_util.h

Index: chrome/browser/printing/printing_gtk_util.h
diff --git a/chrome/browser/printing/printing_gtk_util.h b/chrome/browser/printing/printing_gtk_util.h
deleted file mode 100644
index 8c964ce9b801716880b08cdd7a592df55d59410d..0000000000000000000000000000000000000000
--- a/chrome/browser/printing/printing_gtk_util.h
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright 2014 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_BROWSER_PRINTING_PRINTING_GTK_UTIL_H_
-#define CHROME_BROWSER_PRINTING_PRINTING_GTK_UTIL_H_
-
-#include "ui/gfx/geometry/size.h"
-
-namespace printing {
-class PrintingContextLinux;
-class PrintSettings;
-}
-
-typedef struct _GtkPrintSettings GtkPrintSettings;
-typedef struct _GtkPageSetup GtkPageSetup;
-
-// Obtains the paper size through Gtk.
-gfx::Size GetPdfPaperSizeDeviceUnitsGtk(
-    printing::PrintingContextLinux* context);
-
-#endif  // CHROME_BROWSER_PRINTING_PRINTING_GTK_UTIL_H_