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

chrome/browser/extensions/dev_mode_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/dev_mode_bubble_delegate.h"
 
 #include "base/lazy_instance.h"
 #include "base/metrics/histogram.h"
 #include "chrome/browser/extensions/extension_action_manager.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/generated_resources.h"
 #include "extensions/browser/extension_prefs.h"
 #include "extensions/browser/extension_system.h"
 #include "grit/components_strings.h"
 #include "ui/base/l10n/l10n_util.h"
 
 namespace extensions {
 
-namespace {
-
-base::LazyInstance<std::set<Profile*> > g_shown_for_profiles =
-    LAZY_INSTANCE_INITIALIZER;
-
-}  // namespace
-
 DevModeBubbleDelegate::DevModeBubbleDelegate(Profile* profile)
     : ExtensionMessageBubbleController::Delegate(profile) {
 }
 
 DevModeBubbleDelegate::~DevModeBubbleDelegate() {
 }
 
 bool DevModeBubbleDelegate::ShouldIncludeExtension(const Extension* extension) {
   return (extension->location() == Manifest::UNPACKED ||
           extension->location() == Manifest::COMMAND_LINE);
@@ skipping 59 matching lines @@
       "ExtensionBubble.ExtensionsInDevModeCount", count);
 }
 
 void DevModeBubbleDelegate::LogAction(
     ExtensionMessageBubbleController::BubbleAction action) {
   UMA_HISTOGRAM_ENUMERATION(
       "ExtensionBubble.DevModeUserSelection",
       action, ExtensionMessageBubbleController::ACTION_BOUNDARY);
 }
 
-std::set<Profile*>* DevModeBubbleDelegate::GetProfileSet() {
-  return g_shown_for_profiles.Pointer();
+const char* DevModeBubbleDelegate::GetKey() {
+  return "DevModeBubbleDelegate";
 }
 
-// static
-void DevModeBubbleDelegate::ClearProfileListForTesting() {
-  g_shown_for_profiles.Get().clear();
+bool DevModeBubbleDelegate::ClearProfileSetAfterAction() {
+  return false;
 }
 
 }  // namespace extensions