Fix pushState causing stop/reload button and favicon to flicker.

content/browser/frame_host/interstitial_page_impl.cc

Index: content/browser/frame_host/interstitial_page_impl.cc
diff --git a/content/browser/frame_host/interstitial_page_impl.cc b/content/browser/frame_host/interstitial_page_impl.cc
index 41470a421e55ecf31507396cc318b61e01f48516..78c0fc450ca0cfae2515de6fcbd9e17f3cf5ed36 100644
--- a/content/browser/frame_host/interstitial_page_impl.cc
+++ b/content/browser/frame_host/interstitial_page_impl.cc
@@ -436,7 +436,7 @@ void InterstitialPageImpl::DidNavigate(
   // an interstitial would hang.
   web_contents_was_loading_ = controller_->delegate()->IsLoading();
   controller_->delegate()->SetIsLoading(
-      controller_->delegate()->GetRenderViewHost(), false, NULL);
+      controller_->delegate()->GetRenderViewHost(), false, true, NULL);
 }
 
 void InterstitialPageImpl::UpdateTitle(
@@ -581,7 +581,7 @@ void InterstitialPageImpl::Proceed() {
   // Resumes the throbber, if applicable.
   if (web_contents_was_loading_)
     controller_->delegate()->SetIsLoading(
-        controller_->delegate()->GetRenderViewHost(), true, NULL);
+        controller_->delegate()->GetRenderViewHost(), true, true, NULL);
 
   // If this is a new navigation, the old page is going away, so we cancel any
   // blocked requests for it.  If it is not a new navigation, then it means the