Support print preset options for pdf document

public/web/WebPrintPresetOptions.h

Index: public/web/WebPrintPresetOptions.h
diff --git a/public/web/WebPrintPresetOptions.h b/public/web/WebPrintPresetOptions.h
new file mode 100644
index 0000000000000000000000000000000000000000..ff7881643fb15d499d3d5e0490e3522a8ab53db2
--- /dev/null
+++ b/public/web/WebPrintPresetOptions.h
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+// 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 WebPrintPresetOptions_h
+#define WebPrintPresetOptions_h
+
+#include <vector>
+
+namespace blink {
+
+struct WebPageRange;
+typedef std::vector<WebPageRange> WebPageRanges;
+
+enum WebDuplexMode {
+    WebUnknownDuplexMode = -1,
+    WebSimplex,
+    WebLongEdge,
+    WebShortEdge
+};
+
+struct WebPageRange {
+    int from;
+    int to;
+};
+
+struct WebPrintPresetOptions {
+    WebPrintPresetOptions()
+        : isScalingDisabled(false)
+        , copies(0)
+        , duplexMode(WebUnknownDuplexMode) { }
+
+    // Specifies whether scaling is disabled.
+    bool isScalingDisabled;
+
+    // Specifies the number of copies to be printed.
+    int copies;
+
+    // Specifies duplex mode to be used for printing.
+    WebDuplexMode duplexMode;
+
+    // Specifies page range to be used for printing.
+    WebPageRanges pageRanges;
+};
+
+} // namespace blink
+
+#endif