Turn on enforce-in-pdf Clang plugin flag.

pdf/pdfium/pdfium_range.h

 // 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(const PDFiumRange& that);
   ~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_; }
 
@@ skipping 14 matching lines @@
 
   // 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_