Revert of [DevTools] Remove edited scripts from debugger agent, move knowledge to frontend.

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 511 matching lines @@
     if (!errorString.isEmpty()) {
         callback->sendFailure(errorString);
         return;
     }
     callback->sendSuccess(content, base64Encoded);
 }
 
 void InspectorPageAgent::getResourceContent(ErrorString* errorString, const String& frameId, const String& url, PassRefPtrWillBeRawPtr<GetResourceContentCallback> callback)
 {
     String content;
-    if (m_cssAgent->getEditedStyleSheet(url, &content)) {
+    if (m_debuggerAgent->getEditedScript(url, &content) || m_cssAgent->getEditedStyleSheet(url, &content)) {
         callback->sendSuccess(content, false);
         return;
     }
     if (!m_enabled) {
         callback->sendFailure("Agent is not enabled.");
         return;
     }
     m_inspectorResourceContentLoader->ensureResourcesContentLoaded(bind(&InspectorPageAgent::getResourceContentAfterResourcesContentLoaded, this, frameId, url, callback));
 }
 
@@ skipping 270 matching lines @@
 {
     visitor->trace(m_inspectedFrame);
     visitor->trace(m_debuggerAgent);
     visitor->trace(m_cssAgent);
     visitor->trace(m_overlay);
     visitor->trace(m_inspectorResourceContentLoader);
     InspectorBaseAgent::trace(visitor);
 }
 
 } // namespace blink