Convert RapporRecorder to use mojo.

chrome/browser/renderer_host/chrome_render_message_filter.h

Index: chrome/browser/renderer_host/chrome_render_message_filter.h
diff --git a/chrome/browser/renderer_host/chrome_render_message_filter.h b/chrome/browser/renderer_host/chrome_render_message_filter.h
index 2ed27b0ca720b5e24753a1e191d6b7da7d4a3fa3..171e6c85f6c453509780725dc6c152c18084c406 100644
--- a/chrome/browser/renderer_host/chrome_render_message_filter.h
+++ b/chrome/browser/renderer_host/chrome_render_message_filter.h
@@ -129,8 +129,6 @@ class ChromeRenderMessageFilter : public content::BrowserMessageFilter {
   // Called when a message is received from a renderer that a trial has been
   // activated (ChromeViewHostMsg_FieldTrialActivated).
   void OnFieldTrialActivated(const std::string& trial_name);
-  void OnRecordRappor(const std::string& metric, const std::string& sample);
-  void OnRecordRapporURL(const std::string& metric, const GURL& sample);
 
   const int render_process_id_;