Make Zone::allocation_size work with parallel zones.

src/hydrogen.h

 // Copyright 2012 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 1917 matching lines @@
   unsigned total_size_;
   int64_t full_code_gen_;
   double source_size_;
 };
 
 
 class HPhase BASE_EMBEDDED {
  public:
   static const char* const kFullCodeGen;
 
-  HPhase(const char* name, Isolate* isolate);
+  HPhase(const char* name, Isolate* isolate, Zone* zone);
   HPhase(const char* name, HGraph* graph);
   HPhase(const char* name, LChunk* chunk);
   HPhase(const char* name, LAllocator* allocator);
   ~HPhase();
 
  private:
   void Init(Isolate* isolate,
             const char* name,
+            Zone* zone,
             HGraph* graph,
             LChunk* chunk,
             LAllocator* allocator);
 
   Isolate* isolate_;
   const char* name_;
+  Zone* zone_;
   HGraph* graph_;
   LChunk* chunk_;
   LAllocator* allocator_;
   int64_t start_ticks_;
   unsigned start_allocation_size_;
 };
 
 
 class HTracer: public Malloced {
  public:
@@ skipping 73 matching lines @@
   EmbeddedVector<char, 64> filename_;
   HeapStringAllocator string_allocator_;
   StringStream trace_;
   int indent_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_H_