Suppress WebUSB notifications when appropriate

chrome/browser/chromeos/profiles/profile_helper.cc

Index: chrome/browser/chromeos/profiles/profile_helper.cc
diff --git a/chrome/browser/chromeos/profiles/profile_helper.cc b/chrome/browser/chromeos/profiles/profile_helper.cc
index ce167e6e44e1025084ea0e8be232c59052a2f962..f6aef4d691095de65c867235f2dfbfb219ab4419 100644
--- a/chrome/browser/chromeos/profiles/profile_helper.cc
+++ b/chrome/browser/chromeos/profiles/profile_helper.cc
@@ -475,6 +475,10 @@ std::string ProfileHelper::GetUserIdHashByUserIdForTesting(
   return user_id + kUserIdHashSuffix;
 }
 
+void ProfileHelper::SetActiveUserIdForTesting(const std::string& user_id) {
+  active_user_id_hash_ = GetUserIdHashByUserIdForTesting(user_id);
+}
+
 void ProfileHelper::FlushProfile(Profile* profile) {
   if (!profile_flusher_)
     profile_flusher_.reset(new FileFlusher);