Add a new ContentRendererClient::HandleNavigation callback in RenderViewImpl::decidePolicyForNaviga…

content/renderer/render_view_impl.cc

 // Copyright (c) 2012 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_view_impl.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/bind.h"
@@ skipping 2656 matching lines @@
     Send(new ViewHostMsg_DownloadUrl(routing_id_, request.url(), referrer,
                                      suggested_name));
   } else {
     OpenURL(frame, request.url(), referrer, policy);
   }
 }
 
 WebNavigationPolicy RenderViewImpl::decidePolicyForNavigation(
     WebFrame* frame, const WebURLRequest& request, WebNavigationType type,
     const WebNode&, WebNavigationPolicy default_policy, bool is_redirect) {
+  if (request.url() != GURL(kSwappedOutURL) &&
+      GetContentClient()->renderer()->HandleNavigation(frame, request, type,
+                                                       default_policy,
+                                                       is_redirect)) {
+    return WebKit::WebNavigationPolicyIgnore;
+  }
+
   Referrer referrer(
       GURL(request.httpHeaderField(WebString::fromUTF8("Referer"))),
       GetReferrerPolicyFromRequest(frame, request));
 
   if (is_swapped_out_) {
     if (request.url() != GURL(kSwappedOutURL)) {
       // Targeted links may try to navigate a swapped out frame.  Allow the
       // browser process to navigate the tab instead.  Note that it is also
       // possible for non-targeted navigations (from this view) to arrive
       // here just after we are swapped out.  It's ok to send them to the
@@ skipping 3656 matching lines @@
 }
 #endif
 
 void RenderViewImpl::OnReleaseDisambiguationPopupDIB(
     TransportDIB::Handle dib_handle) {
   TransportDIB* dib = TransportDIB::CreateWithHandle(dib_handle);
   RenderProcess::current()->ReleaseTransportDIB(dib);
 }
 
 }  // namespace content