Initial PlzNavigate RDH-side logic.

content/browser/frame_host/navigator.cc

Index: content/browser/frame_host/navigator.cc
diff --git a/content/browser/frame_host/navigator.cc b/content/browser/frame_host/navigator.cc
index 3d5eb8f906bc16725287097117e8cbd97cf84399..3f5d6cb5f99a9a53625d6debe223a3519ab8f2d2 100644
--- a/content/browser/frame_host/navigator.cc
+++ b/content/browser/frame_host/navigator.cc
@@ -5,6 +5,7 @@
 #include "content/browser/frame_host/navigator.h"
 
 #include "base/time/time.h"
+#include "content/public/browser/stream_handle.h"
 
 namespace content {
 
@@ -22,4 +23,9 @@ base::TimeTicks Navigator::GetCurrentLoadStart() {
   return base::TimeTicks::Now();
 }
 
+void Navigator::CommitNavigation(FrameTreeNode* frame_tree_node,
+                                 ResourceResponse* response,
+                                 scoped_ptr<StreamHandle> body) {
+}
+
 }  // namespace content