Add a NavigationThrottle to the public content/ interface

content/browser/frame_host/render_frame_host_impl.cc

Index: content/browser/frame_host/render_frame_host_impl.cc
diff --git a/content/browser/frame_host/render_frame_host_impl.cc b/content/browser/frame_host/render_frame_host_impl.cc
index f1d2f8ed608f59c5b9019f757d2a14d5e8f044a0..0fcf917be019fb413e693f9ace395f442efea80d 100644
--- a/content/browser/frame_host/render_frame_host_impl.cc
+++ b/content/browser/frame_host/render_frame_host_impl.cc
@@ -22,6 +22,7 @@
 #include "content/browser/frame_host/frame_mojo_shell.h"
 #include "content/browser/frame_host/frame_tree.h"
 #include "content/browser/frame_host/frame_tree_node.h"
+#include "content/browser/frame_host/navigation_handle_factory.h"
 #include "content/browser/frame_host/navigation_handle_impl.h"
 #include "content/browser/frame_host/navigation_request.h"
 #include "content/browser/frame_host/navigator.h"
@@ -907,7 +908,7 @@ void RenderFrameHostImpl::OnDidCommitProvisionalLoad(const IPC::Message& msg) {
   // DidCommitProvisionalLoad IPC without a prior DidStartProvisionalLoad
   // message.
   if (!navigation_handle_) {
-    navigation_handle_ = NavigationHandleImpl::Create(
+    navigation_handle_ = NavigationHandleFactory::Create(
         validated_params.url, frame_tree_node_->IsMainFrame(),
         frame_tree_node_->navigator()->GetDelegate());
   }
@@ -1358,8 +1359,11 @@ void RenderFrameHostImpl::OnBeginNavigation(
     scoped_refptr<ResourceRequestBody> body) {
   CHECK(base::CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kEnableBrowserSideNavigation));
+  // Filter the url.

[nasko, 2015/09/16 20:33:39]

nit: a redundant comment.

[clamy, 2015/09/17 01:18:33]

Done.

+  CommonNavigationParams validated_params = common_params;
+  GetProcess()->FilterURL(false, &validated_params.url);
   frame_tree_node()->navigator()->OnBeginNavigation(
-      frame_tree_node(), common_params, begin_params, body);
+      frame_tree_node(), validated_params, begin_params, body);
 }
 
 void RenderFrameHostImpl::OnDispatchLoad() {