Another round of PDF plugin cleanups.

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>
 
@@ skipping 16 matching lines @@
   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();
+  base::string16 GetText() const;
 
  private:
   PDFiumPage* page_;
   // Index of first character.
   int char_index_;
-  // How many characters are part of this range (negative if  backwards).
+  // 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_