Use a resource throttle to implement shouldOverrideUrlLoading.

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index 8ca36dc7a71cf2fca44cfd47dc25340a0c983a5e..4c202594afaa0cbd178040494945f6aac4a5a689 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -2863,7 +2863,8 @@ void RenderFrameImpl::didFailLoad(blink::WebLocalFrame* frame,
   Send(new FrameHostMsg_DidFailLoadWithError(routing_id_,
                                              failed_request.url(),
                                              error.reason,
-                                             error_description));
+                                             error_description,
+                                             error.wasIgnoredByHandler));
 }
 
 void RenderFrameImpl::didFinishLoad(blink::WebLocalFrame* frame) {
@@ -4113,22 +4114,6 @@ void RenderFrameImpl::OnFailedNavigation(
 WebNavigationPolicy RenderFrameImpl::DecidePolicyForNavigation(
     RenderFrame* render_frame,
     const NavigationPolicyInfo& info) {
-#ifdef OS_ANDROID
-  // The handlenavigation API is deprecated and will be removed once
-  // crbug.com/325351 is resolved.
-  if (info.urlRequest.url() != GURL(kSwappedOutURL) &&
-      GetContentClient()->renderer()->HandleNavigation(
-          render_frame,
-          static_cast<DocumentState*>(info.extraData),
-          render_view_->opener_id_,
-          info.frame,
-          info.urlRequest,
-          info.navigationType,
-          info.defaultPolicy,
-          info.isRedirect)) {
-    return blink::WebNavigationPolicyIgnore;
-  }
-#endif
 
   Referrer referrer(RenderViewImpl::GetReferrerFromRequest(info.frame,
                                                            info.urlRequest));
@@ -4744,6 +4729,7 @@ void RenderFrameImpl::SendFailedProvisionalLoad(
       &params.error_description);
   params.url = error.unreachableURL;
   params.showing_repost_interstitial = show_repost_interstitial;
+  params.was_ignored_by_handler = error.wasIgnoredByHandler;
   Send(new FrameHostMsg_DidFailProvisionalLoadWithError(routing_id_, params));
 }