Make Surface::GetEligibleFrame const

cc/base/scoped_ptr_vector.h

 // Copyright 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 CC_BASE_SCOPED_PTR_VECTOR_H_
 #define CC_BASE_SCOPED_PTR_VECTOR_H_
 
 #include <algorithm>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/stl_util.h"
 
 namespace cc {
 
 // This type acts like a vector<scoped_ptr> based on top of std::vector. The
 // ScopedPtrVector has ownership of all elements in the vector.
 template <typename T>
 class ScopedPtrVector {
  public:
-  typedef typename std::vector<T*>::const_iterator const_iterator;
+  typedef typename std::vector<const T*>::const_iterator const_iterator;
   typedef typename std::vector<T*>::reverse_iterator reverse_iterator;
   typedef typename std::vector<T*>::const_reverse_iterator

[jamesr, 2014/07/24 19:55:47]

this one too?

       const_reverse_iterator;
 
 #if defined(OS_ANDROID)
   // On Android the iterator is not a class, so we can't block assignment.
   typedef typename std::vector<T*>::iterator iterator;
 #else
   // Ban setting values on the iterator directly. New pointers must be passed
   // to methods on the ScopedPtrVector class to appear in the vector.
   class iterator : public std::vector<T*>::iterator {
    public:
@@ skipping 142 matching lines @@
 
  private:
   std::vector<T*> data_;
 
   DISALLOW_COPY_AND_ASSIGN(ScopedPtrVector);
 };
 
 }  // namespace cc
 
 #endif  // CC_BASE_SCOPED_PTR_VECTOR_H_