RAPPOR implementation

chrome/browser/prefs/pref_metrics_service.cc

Index: chrome/browser/prefs/pref_metrics_service.cc
diff --git a/chrome/browser/prefs/pref_metrics_service.cc b/chrome/browser/prefs/pref_metrics_service.cc
index 6bbfa4aa0a7e61e98e8097d4662c3c2a15046e41..8083f6ece523c8f666a0a869c3cc8a783d4b6ffe 100644
--- a/chrome/browser/prefs/pref_metrics_service.cc
+++ b/chrome/browser/prefs/pref_metrics_service.cc
@@ -28,6 +28,7 @@
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "components/browser_context_keyed_service/browser_context_dependency_manager.h"
+#include "components/rappor/rappor_recorder.h"
 #include "crypto/hmac.h"
 #include "grit/browser_resources.h"
 #include "net/base/registry_controlled_domains/registry_controlled_domain.h"
@@ -129,6 +130,15 @@ PrefMetricsService::PrefMetricsService(Profile* profile,
 PrefMetricsService::~PrefMetricsService() {
 }
 
+static void GetUrlParts(const GURL& url, std::vector<std::string>* strs) {
+  strs->push_back(url.spec());
+  strs->push_back(url.host());
+  // TODO(holte) break up host more
+  strs->push_back(url.query());
+  strs->push_back(url.path());
+  // strs.push_back(url.ref());
+}
+
 void PrefMetricsService::RecordLaunchPrefs() {
   bool show_home_button = prefs_->GetBoolean(prefs::kShowHomeButton);
   bool home_page_is_ntp = prefs_->GetBoolean(prefs::kHomePageIsNewTabPage);
@@ -151,6 +161,9 @@ void PrefMetricsService::RecordLaunchPrefs() {
           "Settings.HomePageEngineType",
           TemplateURLPrepopulateData::GetEngineType(homepage_url),
           SEARCH_ENGINE_MAX);
+      std::vector<std::string> url_parts;
+      GetUrlParts(homepage_url, &url_parts);
+      RAPPOR_SAMPLE("Settings.HomePage", url_parts);
     }
   }