Sets correct ActivityLog enabled status to the first renderer process

chrome/common/pref_names.cc

Index: chrome/common/pref_names.cc
diff --git a/chrome/common/pref_names.cc b/chrome/common/pref_names.cc
index a4165bf0cdabcb46f5ae5ddd701524389d4e423c..fe9fedf2e8e8580e8ae79736e2633d994952d299 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -2488,4 +2488,10 @@ const char kDRMSalt[] = "settings.privacy.drm_salt";
 // A boolean pref that enables the (private) pepper GetDeviceID() call.
 const char kEnableDRM[] = "settings.privacy.drm_enabled";
 
+// A boolean per-profile pref that signals if the ActivityLog extension is
+// installed and active. We need to know if the ActivityLog extension active for
+// ActivityLog initialization before the extension system is initialized.
+const char kActivityLogExtensionActive[] =
+    "profile.extensions.activity_log.activity_log_extension_active";
+
 }  // namespace prefs