[RDHI] Refactored blocked_loaders_map_ to key by render frame route id

content/browser/web_contents/web_contents_impl.h

Index: content/browser/web_contents/web_contents_impl.h
diff --git a/content/browser/web_contents/web_contents_impl.h b/content/browser/web_contents/web_contents_impl.h
index 0dd3d6cac57623496e4d73ec89352badfe536d37..6e243c66c0ad4a34901a4e80248e92b0ae6e0656 100644
--- a/content/browser/web_contents/web_contents_impl.h
+++ b/content/browser/web_contents/web_contents_impl.h
@@ -58,6 +58,7 @@ class DownloadItem;
 class GeolocationServiceContext;
 class InterstitialPageImpl;
 class JavaScriptDialogManager;
+class LoaderIOThreadNotifier;
 class ManifestManagerHost;
 class MediaWebContentsObserver;
 class PluginContentOriginWhitelist;
@@ -1293,6 +1294,9 @@ class CONTENT_EXPORT WebContentsImpl
 
   bool virtual_keyboard_requested_;
 
+  // Notifies ResourceDispatcherHostImpl of various events related to loading.
+  scoped_ptr<LoaderIOThreadNotifier> loader_io_thread_notifier_;
+
   // Manages media players, CDMs, and power save blockers for media.
   scoped_ptr<MediaWebContentsObserver> media_web_contents_observer_;