Remove unused histogram Startup.TimeSinceLastStartup*
Bug: 975071
Change-Id: I137c69d0dea42f720b4d0f2db8290d47896d7ead
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1758783
Commit-Queue: François Doray <[email protected]>
Reviewed-by: Gabriel Charette <[email protected]>
Reviewed-by: Steven Holte <[email protected]>
Auto-Submit: François Doray <[email protected]>
Cr-Commit-Position: refs/heads/master@{#690274}
diff --git a/chrome/browser/prefs/browser_prefs.cc b/chrome/browser/prefs/browser_prefs.cc
index 27a0a9a..dc919914 100644
--- a/chrome/browser/prefs/browser_prefs.cc
+++ b/chrome/browser/prefs/browser_prefs.cc
@@ -485,6 +485,9 @@
constexpr char kLocalProfileId[] = "profile.local_profile_id";
#endif
+// Deprecated 8/2019
+const char kLastStartupTimestamp[] = "startup_metric.last_startup_timestamp";
+
// Register prefs used only for migration (clearing or moving to a new key).
void RegisterProfilePrefsForMigration(
user_prefs::PrefRegistrySyncable* registry) {
@@ -714,6 +717,7 @@
#if !defined(OS_ANDROID)
registry->RegisterBooleanPref(kNtpActivateHideShortcutsFieldTrial, false);
#endif // !defined(OS_ANDROID)
+ registry->RegisterInt64Pref(kLastStartupTimestamp, 0);
#if defined(TOOLKIT_VIEWS)
RegisterBrowserViewLocalPrefs(registry);
@@ -1033,6 +1037,9 @@
// Added 7/2019.
local_state->ClearPref(kNtpActivateHideShortcutsFieldTrial);
#endif // !defined(OS_ANDROID)
+
+ // Added 8/2019.
+ local_state->ClearPref(kLastStartupTimestamp);
}
// This method should be periodically pruned of year+ old migrations.
