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

src/profiler/profile-generator.h

 // Copyright 2011 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_PROFILE_GENERATOR_H_
 #define V8_PROFILER_PROFILE_GENERATOR_H_
 
 #include <map>
 #include "src/allocation.h"
 #include "src/base/hashmap.h"
@@ skipping 203 matching lines @@
 
  private:
   static uint32_t CodeEntryHash(CodeEntry* entry) { return entry->GetHash(); }
 
   static bool LineTickMatch(void* a, void* b) { return a == b; }
 
   ProfileTree* tree_;
   CodeEntry* entry_;
   unsigned self_ticks_;
   // Mapping from CodeEntry* to ProfileNode*
-  base::HashMap children_;
+  base::CustomMatcherHashMap children_;
   List<ProfileNode*> children_list_;
   unsigned id_;
-  base::HashMap line_ticks_;
+  base::CustomMatcherHashMap line_ticks_;
 
   std::vector<CpuProfileDeoptInfo> deopt_infos_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileNode);
 };
 
 
 class ProfileTree {
  public:
   explicit ProfileTree(Isolate* isolate);
@@ skipping 16 matching lines @@
  private:
   template <typename Callback>
   void TraverseDepthFirst(Callback* callback);
 
   CodeEntry root_entry_;
   unsigned next_node_id_;
   ProfileNode* root_;
   Isolate* isolate_;
 
   unsigned next_function_id_;
-  base::HashMap function_ids_;
+  base::CustomMatcherHashMap function_ids_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileTree);
 };
 
 
 class CpuProfile {
  public:
   CpuProfile(CpuProfiler* profiler, const char* title, bool record_samples);
 
   // Add pc -> ... -> main() call path to the profile.
@@ skipping 104 matching lines @@
   CodeMap code_map_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileGenerator);
 };
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_PROFILER_PROFILE_GENERATOR_H_