[Reland][Extensions] Don't count bubble focus loss as acknowledgment

chrome/browser/extensions/suspicious_extension_bubble_delegate.cc

 // Copyright (c) 2013 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/extensions/suspicious_extension_bubble_delegate.h"
 
 #include "base/lazy_instance.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/grit/chromium_strings.h"
 #include "chrome/grit/generated_resources.h"
 #include "extensions/browser/extension_prefs.h"
 #include "extensions/browser/extension_system.h"
 #include "extensions/common/extension.h"
 #include "grit/components_strings.h"
 #include "ui/base/l10n/l10n_util.h"
 
 using extensions::ExtensionMessageBubbleController;
 
 namespace {
 
 // Whether the user has been notified about extension being wiped out.
 const char kWipeoutAcknowledged[] = "ack_wiped";
 
-base::LazyInstance<std::set<Profile*> > g_shown_for_profiles =
-  LAZY_INSTANCE_INITIALIZER;
-
 }  // namespace
 
 namespace extensions {
 
 SuspiciousExtensionBubbleDelegate::SuspiciousExtensionBubbleDelegate(
     Profile* profile)
     : extensions::ExtensionMessageBubbleController::Delegate(profile) {
   set_acknowledged_flag_pref_name(kWipeoutAcknowledged);
 }
 
@@ skipping 83 matching lines @@
       "ExtensionBubble.ExtensionWipeoutCount", count);
 }
 
 void SuspiciousExtensionBubbleDelegate::LogAction(
     ExtensionMessageBubbleController::BubbleAction action) {
   UMA_HISTOGRAM_ENUMERATION(
       "ExtensionBubble.WipeoutUserSelection",
       action, ExtensionMessageBubbleController::ACTION_BOUNDARY);
 }
 
-std::set<Profile*>* SuspiciousExtensionBubbleDelegate::GetProfileSet() {
-  return g_shown_for_profiles.Pointer();
-}
-
-// static
-void SuspiciousExtensionBubbleDelegate::ClearProfileListForTesting() {
-  g_shown_for_profiles.Get().clear();
+const char* SuspiciousExtensionBubbleDelegate::GetKey() {
+  return "SuspiciousExtensionBubbleDelegate";
 }
 
 }  // namespace extensions