Index: chrome/browser/profile_resetter/triggered_profile_resetter_win.cc |
diff --git a/chrome/browser/profile_resetter/triggered_profile_resetter_win.cc b/chrome/browser/profile_resetter/triggered_profile_resetter_win.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..d2e07c2d7f1aec715c29d6f71924002a9fd37c6a |
--- /dev/null |
+++ b/chrome/browser/profile_resetter/triggered_profile_resetter_win.cc |
@@ -0,0 +1,86 @@ |
+// Copyright 2015 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 "chrome/browser/profile_resetter/triggered_profile_resetter.h" |
+ |
+#include <stdint.h> |
+ |
+#include "base/metrics/field_trial.h" |
+#include "base/metrics/histogram_macros.h" |
+#include "base/prefs/pref_service.h" |
+#include "base/win/registry.h" |
+#include "chrome/browser/profiles/profile.h" |
+#include "chrome/common/chrome_constants.h" |
+#include "chrome/common/pref_names.h" |
+ |
+// The registry path where the TriggeredReset values get set. Note that this |
+// uses the same path for both SxS (Canary) and non-SxS Chrome. |
+const wchar_t kTriggeredResetRegistryPath[] = |
+ L"Software\\" PRODUCT_STRING_PATH L"\\TriggeredReset"; |
+ |
+const wchar_t kTriggeredResetToolName[] = L"ToolName"; |
+const wchar_t kTriggeredResetTimestamp[] = L"Timestamp"; |
+ |
+namespace { |
+ |
+const char kTriggeredResetFieldTrialName[] = "TriggeredResetFieldTrial"; |
+const char kTriggeredResetOnGroup[] = "On"; |
+ |
+bool IsInTriggeredResetFieldTrial() { |
+ return base::FieldTrialList::FindFullName(kTriggeredResetFieldTrialName) == |
+ kTriggeredResetOnGroup; |
+} |
+ |
+} // namespace |
+ |
+void TriggeredProfileResetter::Activate() { |
+ activate_called_ = true; |
+ |
+ // System profiles don't contain user settings and bail out if we're not in |
+ // the field trial. |
+ if (!profile_ || profile_->IsSystemProfile() || |
+ !IsInTriggeredResetFieldTrial()) { |
+ UMA_HISTOGRAM_BOOLEAN("Profile.TriggeredReset", false); |
+ return; |
+ } |
+ |
+ int64_t timestamp = 0; |
+ base::win::RegKey reset_reg_key(HKEY_CURRENT_USER, |
+ kTriggeredResetRegistryPath, KEY_QUERY_VALUE); |
+ |
+ if (!reset_reg_key.Valid() || |
+ reset_reg_key.ReadInt64(kTriggeredResetTimestamp, ×tamp) != |
+ ERROR_SUCCESS) { |
+ UMA_HISTOGRAM_BOOLEAN("Profile.TriggeredReset", false); |
+ return; |
+ } |
+ |
+ // A reset trigger time was found. Compare it to the trigger time stored |
+ // in this profile. If different, reset the profile and persist the new |
+ // time. |
+ PrefService* pref_service = profile_->GetPrefs(); |
+ const int64 preference_timestamp = |
+ pref_service->GetInt64(prefs::kLastProfileResetTimestamp); |
+ |
+ if (profile_->IsNewProfile()) { |
+ // New profiles should never be reset. Instead, persist the time stamp |
+ // directly. |
+ pref_service->SetInt64(prefs::kLastProfileResetTimestamp, timestamp); |
+ } else if (timestamp != preference_timestamp) { |
+ DVLOG(1) << "Profile reset detected."; |
+ |
+ has_reset_trigger_ = true; |
+ |
+ if (reset_reg_key.ReadValue(kTriggeredResetToolName, &tool_name_) != |
+ ERROR_SUCCESS) { |
+ DVLOG(1) << "Failed to read triggered profile reset tool name."; |
+ } else if (tool_name_.length() > kMaxToolNameLength) { |
+ tool_name_.resize(kMaxToolNameLength); |
+ } |
+ |
+ pref_service->SetInt64(prefs::kLastProfileResetTimestamp, timestamp); |
+ } |
+ |
+ UMA_HISTOGRAM_BOOLEAN("Profile.TriggeredReset", has_reset_trigger_); |
+} |