Use a resource throttle to implement shouldOverrideUrlLoading.

content/renderer/render_frame_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/renderer/render_frame_impl.h"
 
 #include <map>
 #include <string>
 
 #include "base/auto_reset.h"
@@ skipping 4122 matching lines @@
   // TODO(clamy): see if initial commits in subframes should be handled
   // separately.
   bool replace = is_reload || is_history_navigation ||
                  common_params.url == GetLoadingUrl();
   LoadNavigationErrorPage(failed_request, error, replace);
 }
 
 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 =
       *base::CommandLine::ForCurrentProcess();
 
   if (command_line.HasSwitch(switches::kSitePerProcess) && is_subframe_) {
     // There's no reason to ignore navigations on subframes, since the swap out
     // logic no longer applies.
   } else {
     if (is_swapped_out_) {
@@ skipping 842 matching lines @@
 void RenderFrameImpl::RegisterMojoServices() {
   // Only main frame have ImageDownloader service.
   if (!frame_->parent()) {
     GetServiceRegistry()->AddService<image_downloader::ImageDownloader>(
         base::Bind(&ImageDownloaderImpl::CreateMojoService,
                    base::Unretained(this)));
   }
 }
 
 }  // namespace content