PlzNavigate: implement CommitNavigation on the browser side

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 c9c7c8ce8593dbfc8462ed7ab5dd9d573e39ae15..df6e1014bdfb9863b14236fb039b89a7917658a1 100644
--- a/content/browser/frame_host/render_frame_host_impl.cc
+++ b/content/browser/frame_host/render_frame_host_impl.cc
@@ -1216,6 +1216,21 @@ void RenderFrameHostImpl::NotificationClosed(int notification_id) {
   cancel_notification_callbacks_.erase(notification_id);
 }
 
+// PlzNavigate
+void RenderFrameHostImpl::CommitNavigation(
+    const FrameMsg_CommitNavigation_Params& params) {
+  // TODO(clamy): Check if we have to add security checks for the browser plugin
+  // guests.
+
+  DCHECK(render_view_host_->rvh_state() == RenderViewHostImpl::STATE_DEFAULT);
+  // Get back to a clean state, in case we start a new navigation without
+  // completing a RVH swap or unload handler.
+  render_view_host_->SetState(RenderViewHostImpl::STATE_DEFAULT);
+  Send(new FrameMsg_CommitNavigation(routing_id_, params));
+  // TODO(clamy): Check if we have to be concerned about throbbing javascript
+  // urls.
+}
+
 void RenderFrameHostImpl::PlatformNotificationPermissionRequestDone(
     int request_id, blink::WebNotificationPermission permission) {
   Send(new PlatformNotificationMsg_PermissionRequestComplete(