ResourceScheduler get visual signal from RenderViewHostImpl

content/browser/loader/resource_scheduler.h

Index: content/browser/loader/resource_scheduler.h
diff --git a/content/browser/loader/resource_scheduler.h b/content/browser/loader/resource_scheduler.h
index 74ac16d3d42be6fa23f226b134817d030364d3c1..e2c26d84705e5ce9c1f817325ddd713fca8a9003 100644
--- a/content/browser/loader/resource_scheduler.h
+++ b/content/browser/loader/resource_scheduler.h
@@ -14,6 +14,7 @@
 #include "base/threading/non_thread_safe.h"
 #include "base/timer/timer.h"
 #include "content/common/content_export.h"
+#include "content/public/browser/web_contents.h"
 #include "net/base/priority_queue.h"
 #include "net/base/request_priority.h"
 
@@ -103,7 +104,9 @@ class CONTENT_EXPORT ResourceScheduler : public base::NonThreadSafe {
   // Signals from the UI thread, posted as tasks on the IO thread:
 
   // Called when a renderer is created.
-  void OnClientCreated(int child_id, int route_id);
+  void OnClientCreated(int child_id,
+                       int route_id,
+                       WebContents* web_contents);
 
   // Called when a renderer is destroyed.
   void OnClientDeleted(int child_id, int route_id);
@@ -136,6 +139,8 @@ class CONTENT_EXPORT ResourceScheduler : public base::NonThreadSafe {
 
   void OnLoadingStateChanged(int child_id, int route_id, bool is_loaded);
 
+  bool ClientIsVisible(int child_id, int route_id);
+
  private:
   class RequestQueue;
   class ScheduledResourceRequest;