Add UMA data for memory pressure warning received for sync

components/sync_driver/sync_prefs.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/sync_driver/sync_prefs.h"
 
 #include "base/logging.h"
 #include "base/prefs/pref_member.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 64 matching lines @@
   registry->RegisterStringPref(prefs::kSyncSpareBootstrapToken, "");
 #endif
 
   registry->RegisterBooleanPref(prefs::kSyncHasAuthError, false);
 
   registry->RegisterStringPref(prefs::kSyncSessionsGUID, std::string());
 
   registry->RegisterIntegerPref(prefs::kSyncRemainingRollbackTries, 0);
 
   registry->RegisterBooleanPref(prefs::kSyncPassphrasePrompted, false);
+
+  registry->RegisterIntegerPref(prefs::kSyncMemoryPressureReceivings, -1);
+
+  registry->RegisterBooleanPref(prefs::kSyncShutdownUnnormal, true);
 }
 
 void SyncPrefs::AddSyncPrefObserver(SyncPrefObserver* sync_pref_observer) {
   DCHECK(CalledOnValidThread());
   sync_pref_observers_.AddObserver(sync_pref_observer);
 }
 
 void SyncPrefs::RemoveSyncPrefObserver(SyncPrefObserver* sync_pref_observer) {
   DCHECK(CalledOnValidThread());
   sync_pref_observers_.RemoveObserver(sync_pref_observer);
@@ skipping 340 matching lines @@
 }
 
 bool SyncPrefs::IsPassphrasePrompted() const {
   return pref_service_->GetBoolean(prefs::kSyncPassphrasePrompted);
 }
 
 void SyncPrefs::SetPassphrasePrompted(bool value) {
   pref_service_->SetBoolean(prefs::kSyncPassphrasePrompted, value);
 }
 
+int SyncPrefs::GetMemoryPressure() const {
+  return pref_service_->GetInteger(prefs::kSyncMemoryPressureReceivings);
+}
+
+void SyncPrefs::SetMemoryPressure(int value) {
+  pref_service_->SetInteger(prefs::kSyncMemoryPressureReceivings, value);
+}
+
+bool SyncPrefs::IsPreviousCrashed() const {
+  return pref_service_->GetBoolean(prefs::kSyncShutdownUnnormal);
+}
+
+void SyncPrefs::SetCurrentShutdown(bool value) {
+  pref_service_->SetBoolean(prefs::kSyncShutdownUnnormal, value);
+}
+
 }  // namespace sync_driver
+
+