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

src/runtime/runtime.cc

 // Copyright 2012 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.
 
 #include "src/runtime/runtime.h"
 
 #include "src/assembler.h"
 #include "src/base/hashmap.h"
 #include "src/contexts.h"
 #include "src/handles-inl.h"
@@ skipping 43 matching lines @@
   FOR_EACH_INTRINSIC(F)
   FOR_EACH_INTRINSIC(I)
 };
 
 #undef I
 #undef F
 
 namespace {
 
 V8_DECLARE_ONCE(initialize_function_name_map_once);
-static const base::HashMap* kRuntimeFunctionNameMap;
+static const base::CustomMatcherHashMap* kRuntimeFunctionNameMap;
 
 struct IntrinsicFunctionIdentifier {
   IntrinsicFunctionIdentifier(const unsigned char* data, const int length)
       : data_(data), length_(length) {}
 
   static bool Match(void* key1, void* key2) {
     const IntrinsicFunctionIdentifier* lhs =
         static_cast<IntrinsicFunctionIdentifier*>(key1);
     const IntrinsicFunctionIdentifier* rhs =
         static_cast<IntrinsicFunctionIdentifier*>(key2);
     if (lhs->length_ != rhs->length_) return false;
     return CompareCharsUnsigned(reinterpret_cast<const uint8_t*>(lhs->data_),
                                 reinterpret_cast<const uint8_t*>(rhs->data_),
                                 rhs->length_) == 0;
   }
 
   uint32_t Hash() {
     return StringHasher::HashSequentialString<uint8_t>(
         data_, length_, v8::internal::kZeroHashSeed);
   }
 
   const unsigned char* data_;
   const int length_;
 };
 
 void InitializeIntrinsicFunctionNames() {
-  base::HashMap* function_name_map =
-      new base::HashMap(IntrinsicFunctionIdentifier::Match);
+  base::CustomMatcherHashMap* function_name_map =
+      new base::CustomMatcherHashMap(IntrinsicFunctionIdentifier::Match);
   for (size_t i = 0; i < arraysize(kIntrinsicFunctions); ++i) {
     const Runtime::Function* function = &kIntrinsicFunctions[i];
     IntrinsicFunctionIdentifier* identifier = new IntrinsicFunctionIdentifier(
         reinterpret_cast<const unsigned char*>(function->name),
         static_cast<int>(strlen(function->name)));
     base::HashMap::Entry* entry =
         function_name_map->InsertNew(identifier, identifier->Hash());
     entry->value = const_cast<Runtime::Function*>(function);
   }
   kRuntimeFunctionNameMap = function_name_map;
@@ skipping 55 matching lines @@
 }
 
 
 std::ostream& operator<<(std::ostream& os, Runtime::FunctionId id) {
   return os << Runtime::FunctionForId(id)->name;
 }
 
 
 }  // namespace internal
 }  // namespace v8