Make index parameters in Ranges method match the type returned by size()

media/base/ranges.h

 // Copyright (c) 2012 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 MEDIA_BASE_RANGES_H_
 #define MEDIA_BASE_RANGES_H_
 
 #include <algorithm>
 #include <ostream>
 #include <vector>
@@ skipping 14 matching lines @@
   // Allow copy & assign.
 
   // Add (start,end) to this object, coallescing overlaps as appropriate.
   // Returns the number of stored ranges, post coallescing.
   size_t Add(T start, T end);
 
   // Return the number of disjoint ranges.
   size_t size() const;
 
   // Return the "i"'th range's start & end (0-based).
-  T start(int i) const;
-  T end(int i) const;
+  T start(size_t i) const;
+  T end(size_t i) const;
 
   // Clear all ranges.
   void clear();
 
   // Computes the intersection between this range and |other|.
   Ranges<T> IntersectionWith(const Ranges<T>& other) const;
 
  private:
   // Wrapper around DCHECK_LT allowing comparisons of operator<<'able T's.
   void DCheckLT(const T& lhs, const T& rhs) const;
@@ skipping 65 matching lines @@
 void Ranges<T>::DCheckLT(const T& lhs, const T& rhs) const {
   DCHECK_LT(lhs, rhs);
 }
 
 template<class T>
 size_t Ranges<T>::size() const {
   return ranges_.size();
 }
 
 template<class T>
-T Ranges<T>::start(int i) const {
+T Ranges<T>::start(size_t i) const {
   return ranges_[i].first;
 }
 
 template<class T>
-T Ranges<T>::end(int i) const {
+T Ranges<T>::end(size_t i) const {
   return ranges_[i].second;
 }
 
 template<class T>
 void Ranges<T>::clear() {
   ranges_.clear();
 }
 
 template<class T>
 Ranges<T> Ranges<T>::IntersectionWith(const Ranges<T>& other) const {
@@ skipping 15 matching lines @@
     else
       ++j;
   }
 
   return result;
 }
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_RANGES_H_