[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 ceb900e9a006081263027f11a5ec327692717164..2714366b7100ea9d424c8c5efd745629a5c6ac13 100644
--- a/content/browser/web_contents/web_contents_impl.h
+++ b/content/browser/web_contents/web_contents_impl.h
@@ -26,6 +26,7 @@
 #include "content/browser/frame_host/navigator_delegate.h"
 #include "content/browser/frame_host/render_frame_host_delegate.h"
 #include "content/browser/frame_host/render_frame_host_manager.h"
+#include "content/browser/loader/loader_io_thread_notifier_impl.h"
 #include "content/browser/media/audio_stream_monitor.h"
 #include "content/browser/renderer_host/render_view_host_delegate.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
@@ -1289,6 +1290,9 @@ class CONTENT_EXPORT WebContentsImpl
 
   bool virtual_keyboard_requested_;
 
+  // Notifies ResourceDispatcherHostImpl of various events related to loading.
+  scoped_ptr<LoaderIOThreadNotifierImpl> loader_io_thread_notifier_;
+
   // Manages media players, CDMs, and power save blockers for media.
   scoped_ptr<MediaWebContentsObserver> media_web_contents_observer_;