Further refactoring of SBER1 preference usage.

components/safe_browsing_db/safe_browsing_prefs.cc

Index: components/safe_browsing_db/safe_browsing_prefs.cc
diff --git a/components/safe_browsing_db/safe_browsing_prefs.cc b/components/safe_browsing_db/safe_browsing_prefs.cc
index 6f7e247ec2f5ec84a21d75592c0cab907af9a0ee..040190db08a3df50a3c3138d646ce78fbfe9e2c9 100644
--- a/components/safe_browsing_db/safe_browsing_prefs.cc
+++ b/components/safe_browsing_db/safe_browsing_prefs.cc
@@ -16,6 +16,10 @@ const char kSafeBrowsingExtendedReportingEnabled[] =
 
 namespace safe_browsing {
 
+bool ExtendedReportingPrefExists(const PrefService& prefs) {
+  return prefs.HasPrefPath(GetExtendedReportingPrefName());
+}
+
 const char* GetExtendedReportingPrefName() {
   return prefs::kSafeBrowsingExtendedReportingEnabled;
 }
@@ -29,4 +33,8 @@ void RecordExtendedReportingMetrics(const PrefService& prefs) {
                         IsExtendedReportingEnabled(prefs));
 }
 
+void SetExtendedReportingPref(PrefService* prefs, bool value) {
+  prefs->SetBoolean(GetExtendedReportingPrefName(), value);
+}
+
 }  // namespace safe_browsing