DevTools: consistently use Maybe for optional values in the protocol generator.

third_party/WebKit/Source/platform/v8_inspector/V8DebuggerImpl.cpp

 /*
  * Copyright (c) 2010-2011 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 360 matching lines @@
 void V8DebuggerImpl::clearStepping()
 {
     ASSERT(enabled());
     v8::HandleScope scope(m_isolate);
     v8::Context::Scope contextScope(debuggerContext());
 
     v8::Local<v8::Value> argv[] = { v8::Undefined(m_isolate) };
     callDebuggerMethod("clearStepping", 0, argv);
 }
 
-bool V8DebuggerImpl::setScriptSource(const String& sourceID, const String& newContent, bool preview, String* error, OwnPtr<protocol::Debugger::SetScriptSourceError>* errorData, v8::Global<v8::Object>* newCallFrames, OptionalValue<bool>* stackChanged)
+bool V8DebuggerImpl::setScriptSource(const String& sourceID, const String& newContent, bool preview, String* error, Maybe<protocol::Debugger::SetScriptSourceError>* errorData, v8::Global<v8::Object>* newCallFrames, Maybe<bool>* stackChanged)
 {
     class EnableLiveEditScope {
     public:
         explicit EnableLiveEditScope(v8::Isolate* isolate) : m_isolate(isolate)
         {
             v8::Debug::SetLiveEditEnabled(m_isolate, true);
             inLiveEditScope = true;
         }
         ~EnableLiveEditScope()
         {
@@ skipping 425 matching lines @@
 }
 
 v8::Local<v8::Context> V8DebuggerImpl::regexContext()
 {
     if (m_regexContext.IsEmpty())
         m_regexContext.Reset(m_isolate, v8::Context::New(m_isolate));
     return m_regexContext.Get(m_isolate);
 }
 
 } // namespace blink