DevTools: PageAgent: do not use ScriptResource::script as it changes state.

Source/core/inspector/InspectorPageAgent.cpp

 /*
  * Copyright (C) 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 261 matching lines @@
         *result = "";
         return true;
     }
 
     if (cachedResource) {
         switch (cachedResource->type()) {
         case Resource::CSSStyleSheet:
             *result = toCSSStyleSheetResource(cachedResource)->sheetText(false);
             return true;
         case Resource::Script:
-            *result = toScriptResource(cachedResource)->script();
+            *result = cachedResource->resourceBuffer() ? toScriptResource(cachedResource)->decodedText() : toScriptResource(cachedResource)->script();
             return true;
         case Resource::Raw: {
             SharedBuffer* buffer = cachedResource->resourceBuffer();
             if (!buffer)
                 return false;
             OwnPtr<TextResourceDecoder> decoder = createXHRTextDecoder(cachedResource->response().mimeType(), cachedResource->response().textEncodingName());
             String content = decoder->decode(buffer->data(), buffer->size());
             *result = content + decoder->flush();
             return true;
         }
@@ skipping 1193 matching lines @@
 void InspectorPageAgent::trace(Visitor* visitor)
 {
     visitor->trace(m_page);
     visitor->trace(m_injectedScriptManager);
     visitor->trace(m_inspectorResourceContentLoader);
     InspectorBaseAgent::trace(visitor);
 }
 
 } // namespace blink