Speculative fix for crash in DOMUIThumbnailSource.

base/ref_counted_memory.h

-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// 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 BASE_REF_COUNTED_MEMORY_H_
 #define BASE_REF_COUNTED_MEMORY_H_
 #pragma once
 
 #include <vector>
 
 #include "base/ref_counted.h"
@@ skipping 21 matching lines @@
 
 // An implementation of RefCountedMemory, where the ref counting does not
 // matter.
 class RefCountedStaticMemory : public RefCountedMemory {
  public:
   RefCountedStaticMemory()
       : data_(NULL), length_(0) {}
   RefCountedStaticMemory(const unsigned char* data, size_t length)
       : data_(data), length_(length) {}
 
-  virtual const unsigned char* front() const { return data_; }
-  virtual size_t size() const { return length_; }
+  virtual const unsigned char* front() const;
+  virtual size_t size() const;
 
  private:
   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.
 class RefCountedBytes : public RefCountedMemory {
  public:
   // 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) {
-    RefCountedBytes* bytes = new RefCountedBytes;
-    bytes->data.swap(*to_destroy);
-    return bytes;
-  }
+  static RefCountedBytes* TakeVector(std::vector<unsigned char>* to_destroy);
 
-  RefCountedBytes() {}
+  RefCountedBytes();
 
   // Constructs a RefCountedBytes object by _copying_ from |initializer|.
-  RefCountedBytes(const std::vector<unsigned char>& initializer)
-      : data(initializer) {}
+  RefCountedBytes(const std::vector<unsigned char>& initializer);
 
-  virtual const unsigned char* front() const {
-    // STL will assert if we do front() on an empty vector, but calling code
-    // expects a NULL.
-    return size() ? &data.front() : NULL;
-  }
-  virtual size_t size() const { return data.size(); }
+  virtual const unsigned char* front() const;
+  virtual size_t size() const;
 
   std::vector<unsigned char> data;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(RefCountedBytes);
 };
 
 #endif  // BASE_REF_COUNTED_MEMORY_H_