Remove the iOS QR Code scanner experiment code.

ios/chrome/app/main_controller.mm

 // 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.
 
 #import "ios/chrome/app/main_controller.h"
 
 #include <memory>
 #include <string>
 
 #import <CoreSpotlight/CoreSpotlight.h>
@@ skipping 107 matching lines @@
 #import "ios/chrome/browser/ui/promos/signin_promo_view_controller.h"
 #import "ios/chrome/browser/ui/settings/settings_navigation_controller.h"
 #import "ios/chrome/browser/ui/stack_view/stack_view_controller.h"
 #import "ios/chrome/browser/ui/tab_switcher/tab_switcher_controller.h"
 #import "ios/chrome/browser/ui/tabs/tab_strip_controller+tab_switcher_animation.h"
 #include "ios/chrome/browser/ui/ui_util.h"
 #import "ios/chrome/browser/ui/uikit_ui_util.h"
 #import "ios/chrome/browser/ui/util/top_view_controller.h"
 #import "ios/chrome/browser/ui/webui/chrome_web_ui_ios_controller_factory.h"
 #include "ios/chrome/browser/xcallback_parameters.h"
-#include "ios/chrome/grit/ios_strings.h"
 #include "ios/net/cookies/cookie_store_ios.h"
 #import "ios/net/crn_http_protocol_handler.h"
 #include "ios/public/provider/chrome/browser/chrome_browser_provider.h"
 #include "ios/public/provider/chrome/browser/distribution/app_distribution_provider.h"
 #import "ios/public/provider/chrome/browser/native_app_launcher/native_app_whitelist_manager.h"
 #include "ios/public/provider/chrome/browser/signin/chrome_identity_service.h"
 #import "ios/public/provider/chrome/browser/user_feedback/user_feedback_provider.h"
 #import "ios/third_party/material_components_ios/src/components/Typography/src/MaterialTypography.h"
 #import "ios/third_party/material_roboto_font_loader_ios/src/src/MaterialRobotoFontLoader.h"
 #import "ios/third_party/material_roboto_font_loader_ios/src/src/MDCTypographyAdditions/MDFRobotoFontLoader+MDCTypographyAdditions.h"
 #include "ios/web/net/request_tracker_factory_impl.h"
 #include "ios/web/net/request_tracker_impl.h"
 #include "ios/web/net/web_http_protocol_handler_delegate.h"
 #import "ios/web/public/navigation_manager.h"
 #include "ios/web/public/web_capabilities.h"
 #include "ios/web/public/web_state/web_state.h"
 #import "ios/web/public/web_view_creation_util.h"
 #include "ios/web/public/webui/web_ui_ios_controller_factory.h"
 #include "mojo/edk/embedder/embedder.h"
 #import "net/base/mac/url_conversions.h"
 #include "net/url_request/url_request_context.h"
-#include "ui/base/l10n/l10n_util.h"
 
 namespace {
 
 // Preference key used to store which profile is current.
 NSString* kIncognitoCurrentKey = @"IncognitoActive";
 
 // Constants for deferred initialization of preferences observer.
 NSString* const kPrefObserverInit = @"PrefObserverInit";
 
 // Constants for deferring notifying the AuthenticationService of a new cold
@@ skipping 27 matching lines @@
 // Constants for deferring the deletion of pre-upgrade crash reports.
 NSString* const kCleanupCrashReports = @"CleanupCrashReports";
 
 // Constants for deferring the deletion of old snapshots.
 NSString* const kPurgeSnapshots = @"PurgeSnapshots";
 
 // Constants for deferring startup Spotlight bookmark indexing.
 NSString* const kStartSpotlightBookmarksIndexing =
     @"StartSpotlightBookmarksIndexing";
 
-// Constants for deferred initialization of dynamic application shortcut items.
-NSString* const kAddApplicationShortcutItems = @"AddApplicationShortcutItems";
-
 // Constants for deferred promo display.
 const NSTimeInterval kDisplayPromoDelay = 0.1;
 
 // A rough estimate of the expected duration of a view controller transition
 // animation. It's used to temporarily disable mutally exclusive chrome
 // commands that trigger a view controller presentation.
 const int64_t kExpectedTransitionDurationInNanoSeconds = 0.2 * NSEC_PER_SEC;
 
 // Adapted from chrome/browser/ui/browser_init.cc.
 void RegisterComponentsForUpdate() {
@@ skipping 728 matching lines @@
 - (SettingsNavigationController*)settingsNavigationController {
   return _settingsNavigationController;
 }
 
 - (void)setSettingsNavigationController:
     (SettingsNavigationController*)settingsNavigationController {
   _settingsNavigationController.reset([settingsNavigationController retain]);
 }
 
 - (BOOL)startQRScannerAfterTabSwitcherDismissal {
-  return (experimental_flags::IsQRCodeReaderEnabled() &&
-          _startQRScannerAfterTabSwitcherDismissal);
+  return _startQRScannerAfterTabSwitcherDismissal;
 }
 
 - (void)setStartQRScannerAfterTabSwitcherDismissal:(BOOL)startQRScanner {
   _startQRScannerAfterTabSwitcherDismissal = startQRScanner;
 }
 
 #pragma mark - StartupInformation implementation.
 
 - (FirstUserActionRecorder*)firstUserActionRecorder {
   return _firstUserActionRecorder.get();
@@ skipping 244 matching lines @@
   // Deferred tasks.
   [self schedulePrefObserverInitialization];
   [self scheduleMemoryDebuggingTools];
   [_startupTasks scheduleDeferredBrowserStateInitialization:_mainBrowserState];
   [self scheduleAuthenticationServiceNotification];
   [self sendQueuedFeedback];
   [self scheduleSpotlightResync];
   [self scheduleDeleteDownloadsDirectory];
   [self scheduleStartupAttemptReset];
   [self scheduleFreeMemoryMonitoring];
-  [self scheduleAddApplicationShortcutItems];
   [self scheduleAppDistributionPings];
   [self scheduleCheckNativeApps];
 }
 
 - (void)scheduleTasksRequiringBVCWithBrowserState {
   if (GetApplicationContext()->WasLastShutdownClean())
     [self.mainBVC removeExternalFilesImmediately:NO completionHandler:nil];
 
   [self scheduleShowPromo];
 }
@@ skipping 11 matching lines @@
     return;
   }
   ProceduralBlock block = ^{
     [_spotlightManager resyncIndex];
   };
   [[DeferredInitializationRunner sharedInstance]
       enqueueBlockNamed:kStartSpotlightBookmarksIndexing
                   block:block];
 }
 
-- (void)scheduleAddApplicationShortcutItems {
-  ProceduralBlock block = ^{
-    if (experimental_flags::IsQRCodeReaderEnabled()) {
-      UIApplicationShortcutItem* qrScannerShortcutItem = [[
-          [UIApplicationShortcutItem alloc]
-               initWithType:@"OpenQRScanner"
-             localizedTitle:l10n_util::GetNSString(
-                                IDS_IOS_APPLICATION_SHORTCUT_QR_SCANNER_TITLE)
-          localizedSubtitle:nil
-                       icon:[UIApplicationShortcutIcon
-                                iconWithTemplateImageName:
-                                    @"quick_action_qr_scanner"]
-                   userInfo:nil] autorelease];
-      // Note: The following only affects dynamic shortcut items defined
-      // programmatically, and not static shortcut items set in the Info.plist
-      // file.
-      [[UIApplication sharedApplication]
-          setShortcutItems:@[ qrScannerShortcutItem ]];
-    } else {
-      [[UIApplication sharedApplication] setShortcutItems:nil];
-    }
-  };
-
-  [[DeferredInitializationRunner sharedInstance]
-      enqueueBlockNamed:kAddApplicationShortcutItems
-                  block:block];
-}
-
 - (void)expireFirstUserActionRecorder {
   // Clear out any scheduled calls to this method. For example, the app may have
   // been backgrounded before the |kFirstUserActionTimeout| expired.
   [NSObject
       cancelPreviousPerformRequestsWithTarget:self
                                      selector:@selector(
                                                   expireFirstUserActionRecorder)
                                        object:nil];
 
   if (_firstUserActionRecorder) {
@@ skipping 1408 matching lines @@
   };
 
   callbackCounter->IncrementCount();
   [self removeBrowsingDataFromBrowserState:_mainBrowserState
                                       mask:removeAllMask
                                 timePeriod:browsing_data::ALL_TIME
                          completionHandler:decrementCallbackCounterCount];
 }
 
 @end