Added RefCountedMallocedMemory

base/memory/ref_counted_memory.cc

Index: base/memory/ref_counted_memory.cc
diff --git a/base/memory/ref_counted_memory.cc b/base/memory/ref_counted_memory.cc
index b048a6e0d8d2352936e9cb995479058c13f17ba4..b1deee1120167d8517e41b782b7e8690d4e11b80 100644
--- a/base/memory/ref_counted_memory.cc
+++ b/base/memory/ref_counted_memory.cc
@@ -4,6 +4,8 @@
 
 #include "base/memory/ref_counted_memory.h"
 
+#include <stdlib.h>
+
 #include "base/logging.h"
 
 namespace base {
@@ -74,4 +76,22 @@ size_t RefCountedString::size() const {
   return data_.size();
 }
 
+RefCountedMallocedMemory::RefCountedMallocedMemory(
+    void* data, size_t length)
+    : data_(reinterpret_cast<unsigned char*>(data)), length_(length) {
+  DCHECK(data || length == 0);
+}
+
+const unsigned char* RefCountedMallocedMemory::front() const {
+  return length_ ? data_ : NULL;
+}
+
+size_t RefCountedMallocedMemory::size() const {
+  return length_;
+}
+
+RefCountedMallocedMemory::~RefCountedMallocedMemory() {
+  free(data_);
+}
+
 }  //  namespace base