Create PendingScriptClient as a separate client interface for PendingScript.

third_party/WebKit/Source/core/html/parser/HTMLParserScriptRunner.h

 /*
  * 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 19 matching lines @@
 #include "core/dom/PendingScript.h"
 #include "core/fetch/ResourceClient.h"
 #include "core/html/parser/HTMLParserReentryPermit.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Deque.h"
 #include "wtf/RefPtr.h"
 #include "wtf/text/TextPosition.h"
 
 namespace blink {
 
-class Resource;
 class Document;
 class Element;
 class HTMLParserScriptRunnerHost;
 
 // HTMLParserScriptRunner is responsible for for arranging the execution of
 // script elements inserted by the parser, according to the rules for
 // 'An end tag whose tag name is "script"':
 // https://html.spec.whatwg.org/multipage/syntax.html#scriptEndTag
 //
 // If a script blocks parsing, this class is responsible for holding it, and
 // executing it when required.
 //
 // An HTMLParserScriptRunner is owned by its host, an HTMLDocumentParser.
 class HTMLParserScriptRunner final
     : public GarbageCollectedFinalized<HTMLParserScriptRunner>,
-      private ScriptResourceClient {
+      private PendingScriptClient {
   WTF_MAKE_NONCOPYABLE(HTMLParserScriptRunner);
   USING_GARBAGE_COLLECTED_MIXIN(HTMLParserScriptRunner);
   USING_PRE_FINALIZER(HTMLParserScriptRunner, detach);
 
  public:
   static HTMLParserScriptRunner* create(HTMLParserReentryPermit* reentryPermit,
                                         Document* document,
                                         HTMLParserScriptRunnerHost* host) {
     return new HTMLParserScriptRunner(reentryPermit, document, host);
   }
   ~HTMLParserScriptRunner();
 
   // Prepares this object to be destroyed. Invoked when the parser is detached,
   // or failing that, as a pre-finalizer.
   void detach();
 
   // Processes the passed in script and any pending scripts if possible.
   // This does not necessarily run the script immediately. For instance,
   // execution may not happen until the script loads from the network, or after
   // the document finishes parsing.
   void processScriptElement(Element*, const TextPosition& scriptStartPosition);
 
   // Invoked when the parsing-blocking script resource has loaded, to execute
   // parsing-blocking scripts.
-  void executeScriptsWaitingForLoad(Resource*);
+  void executeScriptsWaitingForLoad(PendingScript*);
 
   // Invoked when all script-blocking resources (e.g., stylesheets) have loaded,
   // to execute parsing-blocking scripts.
   void executeScriptsWaitingForResources();
 
   // Invoked when parsing is stopping, to execute any deferred scripts.
   bool executeScriptsWaitingForParsing();
 
   bool hasParserBlockingScript() const;
   bool isExecutingScript() const {
     return !!m_reentryPermit->scriptNestingLevel();
   }
 
-  // ResourceClient
-  void notifyFinished(Resource*) override;
-  String debugName() const override { return "HTMLParserScriptRunner"; }
-
   DECLARE_TRACE();
 
  private:
   HTMLParserScriptRunner(HTMLParserReentryPermit*,
                          Document*,
                          HTMLParserScriptRunnerHost*);
 
+  // PendingScriptClient
+  void pendingScriptFinished(PendingScript*) override;
+
   void executePendingScriptAndDispatchEvent(PendingScript*,
                                             ScriptStreamer::Type);
   void executeParsingBlockingScripts();
 
   void requestParsingBlockingScript(Element*);
   void requestDeferredScript(Element*);
   bool requestPendingScript(PendingScript*, Element*) const;
 
   // Processes the provided script element, but does not execute any
   // parsing-blocking scripts that may remain after execution.
   void processScriptElementInternal(Element*,
                                     const TextPosition& scriptStartPosition);
 
   bool isParserBlockingScriptReady();
 
-  void stopWatchingResourceForLoad(Resource*);
-
-  void possiblyFetchBlockedDocWriteScript(Resource*);
+  void possiblyFetchBlockedDocWriteScript(PendingScript*);
 
   RefPtr<HTMLParserReentryPermit> m_reentryPermit;
   Member<Document> m_document;
   Member<HTMLParserScriptRunnerHost> m_host;
   Member<PendingScript> m_parserBlockingScript;
   // http://www.whatwg.org/specs/web-apps/current-work/#list-of-scripts-that-will-execute-when-the-document-has-finished-parsing
   HeapDeque<Member<PendingScript>> m_scriptsToExecuteAfterParsing;
 };
 
 }  // namespace blink
 
 #endif