[DevTools] Improve MainThreadDebugger::memoryInfo

third_party/WebKit/Source/platform/v8_inspector/V8Console.cpp

 // Copyright 2016 The Chromium 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 "platform/v8_inspector/V8Console.h"
 
 #include "platform/inspector_protocol/String16.h"
 #include "platform/v8_inspector/InjectedScript.h"
 #include "platform/v8_inspector/InspectedContext.h"
 #include "platform/v8_inspector/V8Compat.h"
@@ skipping 430 matching lines @@
 {
     ConsoleHelper helper(info);
     if (V8DebuggerClient* client = helper.ensureDebuggerClient())
         client->consoleTimeStamp(helper.firstArgToString(String16()));
 }
 
 void V8Console::memoryGetterCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (V8DebuggerClient* client = ConsoleHelper(info).ensureDebuggerClient()) {
         v8::Local<v8::Value> memoryValue;
-        if (!client->memoryInfo(info.GetIsolate(), info.GetIsolate()->GetCurrentContext(), info.Holder()).ToLocal(&memoryValue))
+        if (!client->memoryInfo(info.GetIsolate(), info.GetIsolate()->GetCurrentContext()).ToLocal(&memoryValue))
             return;
         info.GetReturnValue().Set(memoryValue);
     }
 }
 
 void V8Console::memorySetterCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     // We can't make the attribute readonly as it breaks existing code that relies on being able to assign to console.memory in strict mode. Instead, the setter just ignores the passed value.  http://crbug.com/468611
 }
 
@@ skipping 263 matching lines @@
     DEFINE_STATIC_LOCAL(protocol::HashSet<String16>, getters, ());
     if (getters.size() == 0) {
         const char* members[] = { "$0", "$1", "$2", "$3", "$4", "$_" };
         for (size_t i = 0; i < WTF_ARRAY_LENGTH(members); ++i)
             getters.add(members[i]);
     }
     return getters.find(name) != getters.end();
 }
 
 } // namespace blink