[base] Remove PointersMatch, making a separate std::equals hashmap

src/profiler/strings-storage.h

 // Copyright 2015 the V8 project 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 V8_PROFILER_STRINGS_STORAGE_H_
 #define V8_PROFILER_STRINGS_STORAGE_H_
 
 #include <stdarg.h>
 
 #include "src/allocation.h"
@@ skipping 18 matching lines @@
   const char* GetName(int index);
   const char* GetFunctionName(Name* name);
   const char* GetFunctionName(const char* name);
   size_t GetUsedMemorySize() const;
 
  private:
   static const int kMaxNameSize = 1024;
 
   static bool StringsMatch(void* key1, void* key2);
   const char* AddOrDisposeString(char* str, int len);
-  base::HashMap::Entry* GetEntry(const char* str, int len);
+  base::CustomMatcherHashMap::Entry* GetEntry(const char* str, int len);
 
   uint32_t hash_seed_;
-  base::HashMap names_;
+  base::CustomMatcherHashMap names_;
 
   DISALLOW_COPY_AND_ASSIGN(StringsStorage);
 };
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_PROFILER_STRINGS_STORAGE_H_