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diff --git a/xfa_test/pdf/pdfium/pdfium_range.h b/xfa_test/pdf/pdfium/pdfium_range.h
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+++ b/xfa_test/pdf/pdfium/pdfium_range.h
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+// Copyright (c) 2010 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 PDF_PDFIUM_PDFIUM_RANGE_H_
+#define PDF_PDFIUM_PDFIUM_RANGE_H_
+
+#include <string>
+#include <vector>
+
+#include "base/strings/string16.h"
+#include "pdf/pdfium/pdfium_page.h"
+#include "ppapi/cpp/rect.h"
+
+namespace chrome_pdf {
+
+// Describes location of a string of characters.
+class PDFiumRange {
+ public:
+  PDFiumRange(PDFiumPage* page, int char_index, int char_count);
+  ~PDFiumRange();
+
+  // Update how many characters are in the selection.  Could be negative if
+  // backwards.
+  void SetCharCount(int char_count);
+
+  int page_index() const { return page_->index(); }
+  int char_index() const { return char_index_; }
+  int char_count() const { return char_count_; }
+
+  // Gets bounding rectangles of range in screen coordinates.
+  std::vector<pp::Rect> GetScreenRects(const pp::Point& offset,
+                                       double zoom,
+                                       int rotation);
+
+  // Gets the string of characters in this range.
+  base::string16 GetText();
+
+ private:
+  PDFiumPage* page_;
+  // Index of first character.
+  int char_index_;
+  // How many characters are part of this range (negative if  backwards).
+  int char_count_;
+
+  // Cache of ScreenRect, and the associated variables used when caching it.
+  std::vector<pp::Rect> cached_screen_rects_;
+  pp::Point cached_screen_rects_offset_;
+  double cached_screen_rects_zoom_;
+};
+
+}  // namespace chrome_pdf
+
+#endif  // PDF_PDFIUM_PDFIUM_RANGE_H_