Remove RefCountedMallocedMemory, it's not used.

base/memory/ref_counted_memory_unittest.cc

 // Copyright (c) 2011 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.
 
 #include "base/memory/ref_counted_memory.h"
 
 #include <stdint.h>
 
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ skipping 34 matching lines @@
   std::string s("destroy me");
   scoped_refptr<RefCountedMemory> mem = RefCountedString::TakeString(&s);
 
   EXPECT_EQ(0U, s.size());
 
   EXPECT_EQ(10U, mem->size());
   EXPECT_EQ('d', mem->front()[0]);
   EXPECT_EQ('e', mem->front()[1]);
 }
 
-TEST(RefCountedMemoryUnitTest, RefCountedMallocedMemory) {
-  void* data = malloc(6);
-  memcpy(data, "hello", 6);
-
-  scoped_refptr<RefCountedMemory> mem = new RefCountedMallocedMemory(data, 6);
-
-  EXPECT_EQ(6U, mem->size());
-  EXPECT_EQ(0, memcmp("hello", mem->front(), 6));
-}
-
 TEST(RefCountedMemoryUnitTest, Equals) {
   std::string s1("same");
   scoped_refptr<RefCountedMemory> mem1 = RefCountedString::TakeString(&s1);
 
   std::vector<unsigned char> d2;
   d2.push_back('s');
   d2.push_back('a');
   d2.push_back('m');
   d2.push_back('e');
   scoped_refptr<RefCountedMemory> mem2 = RefCountedBytes::TakeVector(&d2);
 
   EXPECT_TRUE(mem1->Equals(mem2));
 
   std::string s3("diff");
   scoped_refptr<RefCountedMemory> mem3 = RefCountedString::TakeString(&s3);
 
   EXPECT_FALSE(mem1->Equals(mem3));
   EXPECT_FALSE(mem2->Equals(mem3));
 }
 
 TEST(RefCountedMemoryUnitTest, EqualsNull) {
   std::string s("str");
   scoped_refptr<RefCountedMemory> mem = RefCountedString::TakeString(&s);
   EXPECT_FALSE(mem->Equals(NULL));
 }
 
 }  //  namespace base