Add a FrameHostMsg_BeginNavigation IPC

content/browser/frame_host/render_frame_host_impl.h

Index: content/browser/frame_host/render_frame_host_impl.h
diff --git a/content/browser/frame_host/render_frame_host_impl.h b/content/browser/frame_host/render_frame_host_impl.h
index 092b63045b22a00e10b5564a999ea9c70c424ac1..b130b8a10ac618f746cdde3eec65742c2f679bc0 100644
--- a/content/browser/frame_host/render_frame_host_impl.h
+++ b/content/browser/frame_host/render_frame_host_impl.h
@@ -23,6 +23,7 @@
 class GURL;
 struct FrameHostMsg_DidFailProvisionalLoadWithError_Params;
 struct FrameHostMsg_OpenURL_Params;
+struct FrameHostMsg_BeginNavigation_Params;
 struct FrameMsg_Navigate_Params;
 
 namespace base {
@@ -248,6 +249,9 @@ class CONTENT_EXPORT RenderFrameHostImpl : public RenderFrameHost {
                      blink::WebTextDirection title_direction);
   void OnUpdateEncoding(const std::string& encoding);
 
+  void OnBeginNavigation(
+      const FrameHostMsg_BeginNavigation_Params& params);
+
   // Returns whether the given URL is allowed to commit in the current process.
   // This is a more conservative check than RenderProcessHost::FilterURL, since
   // it will be used to kill processes that commit unauthorized URLs.