Remove support for custom NSURLProtocol.

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 109 matching lines @@
 #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"
 #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"
 
@@ skipping 159 matching lines @@
 
   // Keeps track of the restore state during startup.
   base::scoped_nsobject<CrashRestoreHelper> _restoreHelper;
 
   // An object to record metrics related to the user's first action.
   std::unique_ptr<FirstUserActionRecorder> _firstUserActionRecorder;
 
   // RequestTrackerFactory to customize the behavior of the network stack.
   std::unique_ptr<web::RequestTrackerFactoryImpl> _requestTrackerFactory;
 
-  // Configuration for the HTTP protocol handler.
-  std::unique_ptr<web::WebHTTPProtocolHandlerDelegate>
-      _httpProtocolHandlerDelegate;
-
   // True if First Run UI (terms of service & sync sign-in) is being presented
   // in a modal dialog.
   BOOL _isPresentingFirstRunUI;
 
   // The tab switcher command and the voice search commands can be sent by views
   // that reside in a different UIWindow leading to the fact that the exclusive
   // touch property will be ineffective and a command for processing both
   // commands may be sent in the same run of the runloop leading to
   // inconsistencies. Those two boolean indicate if one of those commands have
   // been processed in the last 200ms in order to only allow processing one at
@@ skipping 230 matching lines @@
 - (instancetype)init {
   if ((self = [super init])) {
     _propertyReleaser_MainController.Init(self, [MainController class]);
     _startupTasks.reset([[StartupTasks alloc] init]);
   }
   return self;
 }
 
 - (void)dealloc {
   [[NSNotificationCenter defaultCenter] removeObserver:self];
-  net::HTTPProtocolHandlerDelegate::SetInstance(nullptr);
   net::RequestTracker::SetRequestTrackerFactory(nullptr);
   [NSObject cancelPreviousPerformRequestsWithTarget:self];
   [super dealloc];
 }
 
 // This function starts up to only what is needed at each stage of the
 // initialization. It is possible to continue initialization later.
 - (void)startUpBrowserToStage:(BrowserInitializationStageType)stage {
   if (_browserInitializationStage < INITIALIZATION_STAGE_BASIC &&
       stage >= INITIALIZATION_STAGE_BASIC) {
@@ skipping 55 matching lines @@
   // TODO(crbug.com/507633): Call this even sooner.
   if (_appState.userInteracted)
     GetApplicationContext()->GetMetricsService()->OnAppEnterForeground();
 
   web::WebUIIOSControllerFactory::RegisterFactory(
       ChromeWebUIIOSControllerFactory::GetInstance());
 
   // TODO(crbug.com/546171): Audit all the following code to see if some of it
   // should move into BrowserMainParts or BrowserProcess.
 
-  [NetworkStackSetup setUpChromeNetworkStack:&_requestTrackerFactory
-                 httpProtocolHandlerDelegate:&_httpProtocolHandlerDelegate];
+  _requestTrackerFactory = [NetworkStackSetup setUpChromeNetworkStack];
 }
 
 - (void)startUpBrowserForegroundInitialization {
   // Give tests a chance to prepare for testing.
   tests_hook::SetUpTestsIfPresent();
 
   GetApplicationContext()->OnAppEnterForeground();
 
   // TODO(crbug.com/546171): Audit all the following code to see if some of it
   // should move into BrowserMainParts or BrowserProcess.
@@ skipping 2035 matching lines @@
   };
 
   callbackCounter->IncrementCount();
   [self removeBrowsingDataFromBrowserState:_mainBrowserState
                                       mask:removeAllMask
                                 timePeriod:browsing_data::ALL_TIME
                          completionHandler:decrementCallbackCounterCount];
 }
 
 @end