Add TimeToScrollUpdateSwapBegin2 in RAPPOR

content/browser/web_contents/web_contents_impl.cc

Index: content/browser/web_contents/web_contents_impl.cc
diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
index a5550fff6a8af7bc3f4ee3887b3cabbd60724ca2..8442c845a8481d0199b2abdf916cf08fba7e259d 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -30,6 +30,7 @@
 #include "base/trace_event/trace_event.h"
 #include "build/build_config.h"
 #include "components/mime_util/mime_util.h"
+#include "components/rappor/rappor_utils.h"
 #include "components/url_formatter/url_formatter.h"
 #include "content/browser/accessibility/accessibility_mode_helper.h"
 #include "content/browser/accessibility/browser_accessibility_state_impl.h"
@@ -5220,4 +5221,14 @@ void WebContentsImpl::RemoveBindingSet(const std::string& interface_name) {
     binding_sets_.erase(it);
 }
 
+::rappor::RapporService* WebContentsImpl::getRapporService() {
+  if (!GetDelegate())
+    return nullptr;
+  return GetDelegate()->getRapporService();
+}
+
+std::string WebContentsImpl::getRapporCommittedUrl() {
+  return ::rappor::GetDomainAndRegistrySampleFromGURL(GetLastCommittedURL());
+}
+
 }  // namespace content