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 094ebe88c06436458f2a162326fd408e02c635ef..e75e82e5e4c7f1cf4bf563aeb5820a77fcb22f3b 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -4140,23 +4140,6 @@ 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));
   const base::CommandLine& command_line =