Refactoring: HashMap: provide a pointer match function, so users don't need to.

src/allocation-tracker.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 193 matching lines @@
   while (it != ranges_.end());
 
   ranges_.erase(to_remove_begin, it);
 
   if (prev_range.start != 0) {
     ranges_.insert(RangeMap::value_type(start, prev_range));
   }
 }
 
 
-static bool AddressesMatch(void* key1, void* key2) {
-  return key1 == key2;
-}
-
-
 void AllocationTracker::DeleteFunctionInfo(FunctionInfo** info) {
     delete *info;
 }
 
 
 AllocationTracker::AllocationTracker(
     HeapObjectsMap* ids, StringsStorage* names)
     : ids_(ids),
       names_(names),
-      id_to_function_info_index_(AddressesMatch),
+      id_to_function_info_index_(HashMap::PointersMatch),
       info_index_for_other_state_(0) {
   FunctionInfo* info = new FunctionInfo();
   info->name = "(root)";
   function_info_list_.Add(info);
 }
 
 
 AllocationTracker::~AllocationTracker() {
   unresolved_locations_.Iterate(DeleteUnresolvedLocation);
   function_info_list_.Iterate(&DeleteFunctionInfo);
@@ skipping 123 matching lines @@
 void AllocationTracker::UnresolvedLocation::HandleWeakScript(
     const v8::WeakCallbackData<v8::Value, void>& data) {
   UnresolvedLocation* loc =
       reinterpret_cast<UnresolvedLocation*>(data.GetParameter());
   GlobalHandles::Destroy(reinterpret_cast<Object**>(loc->script_.location()));
   loc->script_ = Handle<Script>::null();
 }
 
 
 } }  // namespace v8::internal