Revert of Remove uses of deprecated toWebCoreStringWithUndefinedOrNullCheck(v8::Handle<v8::Value>)

Source/core/inspector/JavaScriptCallFrame.cpp

 /*
  * Copyright (c) 2010, Google Inc. 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
@@ skipping 79 matching lines @@
     if (result->IsInt32())
         return result->Int32Value();
     return 0;
 }
 
 String JavaScriptCallFrame::functionName() const
 {
     v8::HandleScope handleScope(m_isolate);
     v8::Context::Scope contextScope(m_debuggerContext.newLocal(m_isolate));
     v8::Handle<v8::Value> result = m_callFrame.newLocal(m_isolate)->Get(v8AtomicString(m_isolate, "functionName"));
-    V8TRYCATCH_FOR_V8STRINGRESOURCE_RETURN(V8StringResource<WithUndefinedOrNullCheck>, name, result, String());
-    return name;
+    return toWebCoreStringWithUndefinedOrNullCheck(result);
 }
 
 v8::Handle<v8::Value> JavaScriptCallFrame::scopeChain() const
 {
     v8::Handle<v8::Array> scopeChain = v8::Handle<v8::Array>::Cast(m_callFrame.newLocal(m_isolate)->Get(v8AtomicString(m_isolate, "scopeChain")));
     v8::Handle<v8::Array> result = v8::Array::New(m_isolate, scopeChain->Length());
     for (uint32_t i = 0; i < scopeChain->Length(); i++)
         result->Set(i, scopeChain->Get(i));
     return result;
 }
 
 int JavaScriptCallFrame::scopeType(int scopeIndex) const
 {
     v8::Handle<v8::Array> scopeType = v8::Handle<v8::Array>::Cast(m_callFrame.newLocal(m_isolate)->Get(v8AtomicString(m_isolate, "scopeType")));
     return scopeType->Get(scopeIndex)->Int32Value();
 }
 
 v8::Handle<v8::Value> JavaScriptCallFrame::thisObject() const
 {
     return m_callFrame.newLocal(m_isolate)->Get(v8AtomicString(m_isolate, "thisObject"));
 }
 
 String JavaScriptCallFrame::stepInPositions() const
 {
     v8::Handle<v8::Object> callFrame = m_callFrame.newLocal(m_isolate);
     v8::Handle<v8::Function> stepInPositions = v8::Handle<v8::Function>::Cast(callFrame->Get(v8AtomicString(m_isolate, "stepInPositions")));
     v8::Handle<v8::Value> result = stepInPositions->Call(callFrame, 0, 0);
-    V8TRYCATCH_FOR_V8STRINGRESOURCE_RETURN(V8StringResource<WithUndefinedOrNullCheck>, resultString, result, String());
-    return resultString;
+    return toWebCoreStringWithUndefinedOrNullCheck(result);
 }
 
 bool JavaScriptCallFrame::isAtReturn() const
 {
     v8::HandleScope handleScope(m_isolate);
     v8::Context::Scope contextScope(m_debuggerContext.newLocal(m_isolate));
     v8::Handle<v8::Value> result = m_callFrame.newLocal(m_isolate)->Get(v8AtomicString(m_isolate, "isAtReturn"));
     if (result->IsBoolean())
         return result->BooleanValue();
     return false;
@@ skipping 33 matching lines @@
     v8::Handle<v8::Function> setVariableValueFunction = v8::Handle<v8::Function>::Cast(callFrame->Get(v8AtomicString(m_isolate, "setVariableValue")));
     v8::Handle<v8::Value> argv[] = {
         v8::Handle<v8::Value>(v8::Integer::New(scopeNumber, m_isolate)),
         v8String(m_isolate, variableName),
         newValue.v8Value()
     };
     return ScriptValue(setVariableValueFunction->Call(callFrame, 3, argv), m_isolate);
 }
 
 } // namespace WebCore