Load API holder from prototype chain instead embedding it in handler.

src/ic/call-optimization.h

 // Copyright 2014 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_IC_CALL_OPTIMIZATION_H_
 #define V8_IC_CALL_OPTIMIZATION_H_
 
 #include "src/code-stubs.h"
 #include "src/ic/access-compiler.h"
 #include "src/macro-assembler.h"
@@ skipping 20 matching lines @@
     return expected_receiver_type_;
   }
 
   Handle<CallHandlerInfo> api_call_info() const {
     DCHECK(is_simple_api_call());
     return api_call_info_;
   }
 
   enum HolderLookup { kHolderNotFound, kHolderIsReceiver, kHolderFound };
   Handle<JSObject> LookupHolderOfExpectedType(
-      Handle<Map> receiver_map, HolderLookup* holder_lookup) const;
+      Handle<Map> receiver_map, HolderLookup* holder_lookup,
+      int* holder_depth_in_prototype_chain = NULL) const;
 
   // Check if the api holder is between the receiver and the holder.
   bool IsCompatibleReceiver(Handle<Object> receiver,
                             Handle<JSObject> holder) const;
 
  private:
   void Initialize(Handle<JSFunction> function);
 
   // Determines whether the given function can be called using the
   // fast api call builtin.
   void AnalyzePossibleApiFunction(Handle<JSFunction> function);
 
   Handle<JSFunction> constant_function_;
   bool is_simple_api_call_;
   Handle<FunctionTemplateInfo> expected_receiver_type_;
   Handle<CallHandlerInfo> api_call_info_;
 };
 }
 }  // namespace v8::internal
 
 #endif  // V8_IC_CALL_OPTIMIZATION_H_