[ios] Cleaned up ios web shell from UIWebView code.

ios/web/shell/view_controller.mm

 // Copyright 2014 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/web/shell/view_controller.h"
 
 #include <stdint.h>
 
 #include <utility>
 
 #include "base/mac/objc_property_releaser.h"
 #import "base/mac/scoped_nsobject.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/sys_string_conversions.h"
 #include "ios/net/cookies/cookie_store_ios.h"
 #import "ios/net/crn_http_protocol_handler.h"
 #import "ios/net/empty_nsurlcache.h"
-#import "ios/web/navigation/crw_session_controller.h"
-#import "ios/web/net/crw_url_verifying_protocol_handler.h"
-#include "ios/web/net/request_tracker_factory_impl.h"
-#import "ios/web/net/web_http_protocol_handler_delegate.h"
 #include "ios/web/public/referrer.h"
 #import "ios/web/public/web_controller_factory.h"
 #include "ios/web/public/web_state/web_state.h"
 #import "ios/web/public/web_state/web_state_observer_bridge.h"
 #include "ios/web/shell/shell_browser_state.h"
 #include "ios/web/web_state/ui/crw_web_controller.h"
 #include "ios/web/web_state/web_state_impl.h"
 #include "ui/base/page_transition_types.h"
 
 NSString* const kWebShellBackButtonAccessibilityLabel = @"Back";
 NSString* const kWebShellForwardButtonAccessibilityLabel = @"Forward";
 NSString* const kWebShellAddressFieldAccessibilityLabel = @"Address field";
 
 using web::NavigationManager;
 
 @interface ViewController ()<CRWWebStateObserver> {
   web::BrowserState* _browserState;
   base::scoped_nsobject<CRWWebController> _webController;
-  scoped_ptr<web::RequestTrackerFactoryImpl> _requestTrackerFactory;
-  scoped_ptr<web::WebHTTPProtocolHandlerDelegate> _httpProtocolDelegate;
   scoped_ptr<web::WebStateObserverBridge> _webStateObserver;
 
   base::mac::ObjCPropertyReleaser _propertyReleaser_ViewController;
 }
 @property(nonatomic, assign, readonly) web::WebState* webState;
 @property(nonatomic, assign, readonly) NavigationManager* navigationManager;
 @property(nonatomic, readwrite, retain) UITextField* field;
 @end
 
 @implementation ViewController
@@ skipping 85 matching lines @@
   return [_webController webState];
 }
 
 - (NavigationManager*)navigationManager {
   return self.webState->GetNavigationManager();
 }
 
 - (void)setUpNetworkStack {
   // Disable the default cache.
   [NSURLCache setSharedURLCache:[EmptyNSURLCache emptyNSURLCache]];
-
-  _httpProtocolDelegate.reset(new web::WebHTTPProtocolHandlerDelegate(
-      _browserState->GetRequestContext()));
-  net::HTTPProtocolHandlerDelegate::SetInstance(_httpProtocolDelegate.get());
-  BOOL success = [NSURLProtocol registerClass:[CRNHTTPProtocolHandler class]];
-  DCHECK(success);
-  // The CRWURLVerifyingProtocolHandler is used to verify URL in the
-  // CRWWebController. It must be registered after the HttpProtocolHandler
-  // because handlers are called in the reverse order of declaration.
-  success =
-      [NSURLProtocol registerClass:[CRWURLVerifyingProtocolHandler class]];
-  DCHECK(success);
-  _requestTrackerFactory.reset(
-      new web::RequestTrackerFactoryImpl(std::string()));
-  net::RequestTracker::SetRequestTrackerFactory(_requestTrackerFactory.get());
   net::CookieStoreIOS::SetCookiePolicy(net::CookieStoreIOS::ALLOW);
 }
 
 - (void)didReceiveMemoryWarning {
   [super didReceiveMemoryWarning];
 }
 
 - (UIBarPosition)positionForBar:(id<UIBarPositioning>)bar {
   if (bar == _toolbarView) {
     return UIBarPositionTopAttached;
@@ skipping 196 matching lines @@
 - (void)webWillFinishHistoryNavigationFromEntry:(CRWSessionEntry*)fromEntry {
 }
 - (int)downloadImageAtUrl:(const GURL&)url
             maxBitmapSize:(uint32_t)maxBitmapSize
                  callback:
                      (const web::WebState::ImageDownloadCallback&)callback {
   return -1;
 }
 
 @end