DevTools: generate string16-based handlers for v8_inspector.

third_party/WebKit/Source/core/inspector/InspectorCSSAgent.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:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 1686 matching lines @@
     IdToInspectorStyleSheet::iterator it = m_idToInspectorStyleSheet.find(styleSheetId);
     if (it == m_idToInspectorStyleSheet.end()) {
         *errorString = "No style sheet with given id found";
         return nullptr;
     }
     return it->value.get();
 }
 
 InspectorStyleSheetBase* InspectorCSSAgent::assertStyleSheetForId(ErrorString* errorString, const String& styleSheetId)
 {
-    String placeholder;
+    ErrorString placeholder;
     InspectorStyleSheetBase* result = assertInspectorStyleSheetForId(&placeholder, styleSheetId);
     if (result)
         return result;
     IdToInspectorStyleSheetForInlineStyle::iterator it = m_idToInspectorStyleSheetForInlineStyle.find(styleSheetId);
     if (it == m_idToInspectorStyleSheetForInlineStyle.end()) {
         *errorString = "No style sheet with given id found";
         return nullptr;
     }
     return it->value.get();
 }
@@ skipping 388 matching lines @@
     visitor->trace(m_documentToCSSStyleSheets);
     visitor->trace(m_invalidatedDocuments);
     visitor->trace(m_nodeToInspectorStyleSheet);
     visitor->trace(m_documentToViaInspectorStyleSheet);
 #endif
     visitor->trace(m_inspectorUserAgentStyleSheet);
     InspectorBaseAgent::trace(visitor);
 }
 
 } // namespace blink