Retrieve client_id from GoogleUpdateSettings when its missing from Local State.

chrome/browser/google/google_update_settings_posix.cc

Index: chrome/browser/google/google_update_settings_posix.cc
diff --git a/chrome/browser/google/google_update_settings_posix.cc b/chrome/browser/google/google_update_settings_posix.cc
index 06b65efa145902e243730c93db53d512d73fc996..117c7d69a61057c71dd692865c7b119b068a8137 100644
--- a/chrome/browser/google/google_update_settings_posix.cc
+++ b/chrome/browser/google/google_update_settings_posix.cc
@@ -67,14 +67,19 @@ bool GoogleUpdateSettings::SetCollectStatsConsent(bool consented) {
 }
 
 // static
-bool GoogleUpdateSettings::RetrieveMetricsID(std::string* metrics_id) {
+// TODO(gab): Implement |installation_date| saving/retrieval on POSIX.
+bool GoogleUpdateSettings::RetrieveMetricsInfo(std::string* metrics_id,
+                                               int64* /* installation_date */) {
   base::AutoLock lock(g_posix_client_id_lock.Get());
   *metrics_id = g_posix_client_id.Get();
   return true;
 }
 
 // static
-bool GoogleUpdateSettings::SaveMetricsID(const std::string& client_id) {
+// TODO(gab): Implement |installation_date| saving/retrieval on POSIX.
+bool GoogleUpdateSettings::SaveMetricsInfo(
+    const std::string& client_id,
+    const base::Time& /* installation_date */) {
   // Make sure that user has consented to send crashes.
   if (!GoogleUpdateSettings::GetCollectStatsConsent())
     return false;