Introduce the ThrottleManager

content/public/test/navigation_simulator.h

Index: content/public/test/navigation_simulator.h
diff --git a/content/public/test/navigation_simulator.h b/content/public/test/navigation_simulator.h
index 13a90a0490cedd05bc526ed87551e511e7919310..eb93e5bd51ee58551c49ea165d1e402b0c94c53b 100644
--- a/content/public/test/navigation_simulator.h
+++ b/content/public/test/navigation_simulator.h
@@ -120,6 +120,10 @@ class NavigationSimulator : public WebContentsObserver {
   // pushState/popState navigations.
   virtual void CommitSamePage();
 
+  // Must be called after the simulated navigation commits. Returns the render
+  // frame host the navigation commit in.
+  virtual RenderFrameHost* GetFinalRenderFrameHost();
+
   // --------------------------------------------------------------------------
 
   // The following functions are used to specify the parameters of the