Adds navigator.registerProtocolHandler.

chrome/browser/renderer_host/render_view_host_delegate.h

Index: chrome/browser/renderer_host/render_view_host_delegate.h
diff --git a/chrome/browser/renderer_host/render_view_host_delegate.h b/chrome/browser/renderer_host/render_view_host_delegate.h
index ef02f960f17bf6ef2b9f18a2a079c7e5b4d2347f..e3dc4aba807feef8e2971864dc43b308500cfb6e 100644
--- a/chrome/browser/renderer_host/render_view_host_delegate.h
+++ b/chrome/browser/renderer_host/render_view_host_delegate.h
@@ -511,6 +511,10 @@ class RenderViewHostDelegate : public IPC::Channel::Listener {
                                           const std::string& origin,
                                           const std::string& target) {}
 
+  virtual void RegisterProtocolHandler(const std::string& protocol,
+                                       const std::string& url,
+                                       const std::string& title) {}
+
   // A javascript message, confirmation or prompt should be shown.
   virtual void RunJavaScriptMessage(const std::wstring& message,
                                     const std::wstring& default_prompt,