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

Source/core/inspector/InspectorPageAgent.cpp

Index: Source/core/inspector/InspectorPageAgent.cpp
diff --git a/Source/core/inspector/InspectorPageAgent.cpp b/Source/core/inspector/InspectorPageAgent.cpp
index 9f403f4f1248b887114bd80099c3a397d2624fcf..20b4717cdac2daf20cd702876ed8996ba0f6dbc9 100644
--- a/Source/core/inspector/InspectorPageAgent.cpp
+++ b/Source/core/inspector/InspectorPageAgent.cpp
@@ -529,7 +529,7 @@
 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;
     }