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

content/browser/frame_host/render_frame_host_impl.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/frame_host/render_frame_host_impl.h"
 
 #include "base/containers/hash_tables.h"
 #include "base/lazy_instance.h"
 #include "base/metrics/user_metrics_action.h"
 #include "content/browser/child_process_security_policy_impl.h"
@@ skipping 355 matching lines @@
 void RenderFrameHostImpl::SwapOut() {
   if (render_view_host_->IsRenderViewLive()) {
     Send(new FrameMsg_SwapOut(routing_id_));
   } else {
     // Our RenderViewHost doesn't have a live renderer, so just skip the unload
     // event.
     OnSwappedOut(true);
   }
 }
 
-void RenderFrameHostImpl::OnDidStartLoading() {
-  delegate_->DidStartLoading(this);
+void RenderFrameHostImpl::OnDidStartLoading(bool to_different_document) {
+  delegate_->DidStartLoading(this, to_different_document);
 }
 
 void RenderFrameHostImpl::OnDidStopLoading() {
   delegate_->DidStopLoading(this);
 }
 
 void RenderFrameHostImpl::OnSwapOutACK() {
   OnSwappedOut(false);
 }
 
@@ skipping 69 matching lines @@
   // browser. But we want to keep the throbber in sync with what's happening
   // in the UI. For example, we want to start throbbing immediately when the
   // user naivgates even if the renderer is delayed. There is also an issue
   // with the throbber starting because the WebUI (which controls whether the
   // favicon is displayed) happens synchronously. If the start loading
   // messages was asynchronous, then the default favicon would flash in.
   //
   // Blink doesn't send throb notifications for JavaScript URLs, so we
   // don't want to either.
   if (!params.url.SchemeIs(kJavaScriptScheme))
-    delegate_->DidStartLoading(this);
+    delegate_->DidStartLoading(this, true);
 }
 
 void RenderFrameHostImpl::NavigateToURL(const GURL& url) {
   FrameMsg_Navigate_Params params;
   params.page_id = -1;
   params.pending_history_list_offset = -1;
   params.current_history_list_offset = -1;
   params.current_history_list_length = 0;
   params.url = url;
   params.transition = PAGE_TRANSITION_LINK;
   params.navigation_type = FrameMsg_Navigate_Type::NORMAL;
   Navigate(params);
 }
 
 }  // namespace content