Split content script injections into multiple tasks

content/public/renderer/content_renderer_client.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_PUBLIC_RENDERER_CONTENT_RENDERER_CLIENT_H_
 #define CONTENT_PUBLIC_RENDERER_CONTENT_RENDERER_CLIENT_H_
 
 #include <stddef.h>
 
 #include <map>
@@ skipping 301 matching lines @@
 
   // Notifies that a document element has been inserted in the frame's document.
   // This may be called multiple times for the same document. This method may
   // invalidate the frame.
   virtual void RunScriptsAtDocumentStart(RenderFrame* render_frame) {}
 
   // Notifies that the DOM is ready in the frame's document.
   // This method may invalidate the frame.
   virtual void RunScriptsAtDocumentEnd(RenderFrame* render_frame) {}
 
+  // Notifies that the window.onload event is about to fire.
+  // This method may invalidate the frame.
+  virtual void RunScriptsAtDocumentIdle(RenderFrame* render_frame) {}
+
   // Allows subclasses to enable some runtime features before Blink has
   // started.
   virtual void SetRuntimeFeaturesDefaultsBeforeBlinkInitialization() {}
 
   // Notifies that a service worker context has been created. This function
   // is called from the worker thread.
   virtual void DidInitializeServiceWorkerContextOnWorkerThread(
       v8::Local<v8::Context> context,
       int64_t service_worker_version_id,
       const GURL& url) {}
@@ skipping 30 matching lines @@
       base::TaskScheduler::WorkerPoolIndexForTraitsCallback*
           index_to_traits_callback) {}
 
   // Returns true if the media pipeline can be suspended, or false otherwise.
   virtual bool AllowMediaSuspend();
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_RENDERER_CONTENT_RENDERER_CLIENT_H_