Add PrefMember<base::Time>

components/prefs/pref_service.cc

Index: components/prefs/pref_service.cc
diff --git a/components/prefs/pref_service.cc b/components/prefs/pref_service.cc
index 4891ff59c669af84f3e3cb987932e27142f77e07..ed1e046bb7a408f9c742df1a5e712c74bc672f4e 100644
--- a/components/prefs/pref_service.cc
+++ b/components/prefs/pref_service.cc
@@ -188,6 +188,22 @@ base::FilePath PrefService::GetFilePath(const std::string& path) const {
   return result;
 }
 
+base::Time PrefService::GetTime(const std::string& path) const {
+  DCHECK(CalledOnValidThread());
+
+  const base::Value* value = GetPreferenceValue(path);
+  if (!value) {
+    NOTREACHED() << "Trying to read an unregistered pref: " << path;
+    return base::Time();
+  }
+  std::string value_string;
+  int64_t value_int = 0;
+  bool rv = (value->GetAsString(&value_string) &&
+             base::StringToInt64(value_string, &value_int));
+  DCHECK(rv);
+  return base::Time::FromInternalValue(value_int);
+}
+
 bool PrefService::HasPrefPath(const std::string& path) const {
   const Preference* pref = FindPreference(path);
   return pref && !pref->IsDefaultValue();
@@ -409,6 +425,11 @@ void PrefService::SetFilePath(const std::string& path,
   SetUserPrefValue(path, base::CreateFilePathValue(value));
 }
 
+void PrefService::SetTime(const std::string& path, base::Time value) {
+  SetUserPrefValue(path, new base::StringValue(
+      base::Int64ToString(value.ToInternalValue())));
+}
+
 void PrefService::SetInt64(const std::string& path, int64_t value) {
   SetUserPrefValue(path, new base::StringValue(base::Int64ToString(value)));
 }