Simplify the default browser infobar.

chrome/browser/prefs/browser_prefs.cc

 // Copyright 2012 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/prefs/browser_prefs.h"
 
 #include <string>
 
 #include "base/metrics/histogram_macros.h"
 #include "base/trace_event/trace_event.h"
@@ skipping 54 matching lines @@
 #include "chrome/browser/ui/webui/ntp/new_tab_ui.h"
 #include "chrome/browser/ui/webui/plugins/plugins_ui.h"
 #include "chrome/browser/ui/webui/print_preview/sticky_settings.h"
 #include "chrome/common/features.h"
 #include "chrome/common/pref_names.h"
 #include "components/autofill/core/browser/autofill_manager.h"
 #include "components/content_settings/core/browser/host_content_settings_map.h"
 #include "components/dom_distiller/core/distilled_page_prefs.h"
 #include "components/flags_ui/pref_service_flags_storage.h"
 #include "components/gcm_driver/gcm_channel_status_syncer.h"
+#include "components/metrics/metrics_service.h"
 #include "components/network_time/network_time_tracker.h"
 #include "components/ntp_snippets/ntp_snippets_service.h"
 #include "components/omnibox/browser/zero_suggest_provider.h"
 #include "components/password_manager/core/browser/password_bubble_experiment.h"
 #include "components/password_manager/core/browser/password_manager.h"
 #include "components/policy/core/browser/browser_policy_connector.h"
 #include "components/policy/core/browser/url_blacklist_manager.h"
 #include "components/policy/core/common/policy_statistics_collector.h"
 #include "components/pref_registry/pref_registry_syncable.h"
 #include "components/prefs/pref_registry_simple.h"
@@ skipping 187 matching lines @@
 const char kOverscrollVerticalResistThreshold[] =
     "overscroll.vertical_resist_threshold";
 #endif  // defined(USE_AURA)
 
 #if BUILDFLAG(ENABLE_GOOGLE_NOW)
 // Deprecated 3/2016
 const char kGoogleGeolocationAccessEnabled[] =
     "googlegeolocationaccess.enabled";
 #endif
 
+// Deprecated 4/2016.
+const char kCheckDefaultBrowser[] = "browser.check_default_browser";
+
 }  // namespace
 
 namespace chrome {
 
 void RegisterLocalState(PrefRegistrySimple* registry) {
   // Please keep this list alphabetized.
   AppListService::RegisterPrefs(registry);
   browser_shutdown::RegisterPrefs(registry);
   BrowserProcessImpl::RegisterPrefs(registry);
   ChromeMetricsServiceClient::RegisterPrefs(registry);
@@ skipping 293 matching lines @@
   registry->RegisterDoublePref(kOverscrollVerticalResistThreshold, 0);
 #endif  // defined(USE_AURA)
 
   registry->RegisterListPref(kURLsToRestoreOnStartupOld);
   registry->RegisterInt64Pref(kRestoreStartupURLsMigrationTime, 0);
   registry->RegisterBooleanPref(kRestoreOnStartupMigrated, false);
 
 #if BUILDFLAG(ENABLE_GOOGLE_NOW)
   registry->RegisterBooleanPref(kGoogleGeolocationAccessEnabled, false);
 #endif
+
+  registry->RegisterBooleanPref(kCheckDefaultBrowser, true);
 }
 
 void RegisterUserProfilePrefs(user_prefs::PrefRegistrySyncable* registry) {
   RegisterProfilePrefs(registry);
 
 #if defined(OS_CHROMEOS)
   chromeos::PowerPrefs::RegisterUserProfilePrefs(registry);
 #endif
 }
 
@@ skipping 61 matching lines @@
   profile_prefs->ClearPref(kOverscrollMinimumThresholdStartTouchpad);
   profile_prefs->ClearPref(kOverscrollVerticalThresholdStart);
   profile_prefs->ClearPref(kOverscrollHorizontalResistThreshold);
   profile_prefs->ClearPref(kOverscrollVerticalResistThreshold);
 #endif  // defined(USE_AURA)
 
 #if BUILDFLAG(ENABLE_GOOGLE_NOW)
   // Added 3/2016.
   profile_prefs->ClearPref(kGoogleGeolocationAccessEnabled);
 #endif
+
+  // Added 4/2016.
+  if (!profile_prefs->GetBoolean(kCheckDefaultBrowser)) {
+    // Seed kDefaultBrowserLastDeclined with the install date.
+    metrics::MetricsService* metrics_service =
+        g_browser_process->metrics_service();
+    base::Time install_time =
+        metrics_service
+            ? base::Time::FromTimeT(metrics_service->GetInstallDate())
+            : base::Time::Now();
+    profile_prefs->SetInt64(prefs::kDefaultBrowserLastDeclined,
+                            install_time.ToInternalValue());
+  }
+  profile_prefs->ClearPref(kCheckDefaultBrowser);
 }
 
 }  // namespace chrome