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base/memory/ref_counted_memory.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 BASE_MEMORY_REF_COUNTED_MEMORY_H_
 #define BASE_MEMORY_REF_COUNTED_MEMORY_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 46 matching lines @@
 
  private:
   virtual ~RefCountedStaticMemory();
 
   const unsigned char* data_;
   size_t length_;
 
   DISALLOW_COPY_AND_ASSIGN(RefCountedStaticMemory);
 };
 
-// An implementation of RefCountedMemory, where we own our the data in a
-// vector.
+// An implementation of RefCountedMemory, where we own the data in a vector.
 class BASE_EXPORT RefCountedBytes : public RefCountedMemory {
  public:
   RefCountedBytes();
 
   // Constructs a RefCountedBytes object by _copying_ from |initializer|.
   explicit RefCountedBytes(const std::vector<unsigned char>& initializer);
 
+  // Constructs a RefCountedBytes object by copying |size| bytes from |p|.
+  RefCountedBytes(const unsigned char* p, size_t size);
+
   // Constructs a RefCountedBytes object by performing a swap. (To non
   // destructively build a RefCountedBytes, use the constructor that takes a
   // vector.)
   static RefCountedBytes* TakeVector(std::vector<unsigned char>* to_destroy);
 
   // Overridden from RefCountedMemory:
   virtual const unsigned char* front() const OVERRIDE;
   virtual size_t size() const OVERRIDE;
 
   const std::vector<unsigned char>& data() const { return data_; }
@@ skipping 49 matching lines @@
 
   unsigned char* data_;
   size_t length_;
 
   DISALLOW_COPY_AND_ASSIGN(RefCountedMallocedMemory);
 };
 
 }  // namespace base
 
 #endif  // BASE_MEMORY_REF_COUNTED_MEMORY_H_