Remove RequestTracker from WebStateImpl.

ios/web/web_state/web_state_impl.mm

 // Copyright 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.
 
 #import "ios/web/web_state/web_state_impl.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/logging.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/strings/sys_string_conversions.h"
 #import "ios/web/interstitials/web_interstitial_impl.h"
 #import "ios/web/navigation/crw_session_controller.h"
 #import "ios/web/navigation/crw_session_entry.h"
 #import "ios/web/navigation/navigation_item_impl.h"
-#import "ios/web/net/request_group_util.h"
 #include "ios/web/public/browser_state.h"
 #import "ios/web/public/image_fetcher/image_data_fetcher.h"
 #import "ios/web/public/java_script_dialog_presenter.h"
 #import "ios/web/public/navigation_item.h"
 #include "ios/web/public/url_util.h"
 #import "ios/web/public/web_client.h"
 #import "ios/web/public/web_state/context_menu_params.h"
 #include "ios/web/public/web_state/credential.h"
 #import "ios/web/public/web_state/ui/crw_content_view.h"
 #include "ios/web/public/web_state/web_state_delegate.h"
@@ skipping 57 matching lines @@
 
   for (auto& observer : observers_)
     observer.WebStateDestroyed();
   for (auto& observer : observers_)
     observer.ResetWebState();
   for (auto& observer : policy_deciders_)
     observer.WebStateDestroyed();
   for (auto& observer : policy_deciders_)
     observer.ResetWebState();
   DCHECK(script_command_callbacks_.empty());
-  if (request_tracker_.get())
-    CloseRequestTracker();
   SetDelegate(nullptr);
 }
 
 WebStateDelegate* WebStateImpl::GetDelegate() {
   return delegate_;
 }
 
 void WebStateImpl::SetDelegate(WebStateDelegate* delegate) {
   if (delegate == delegate_)
     return;
@@ skipping 398 matching lines @@
 bool WebStateImpl::ShouldAllowResponse(NSURLResponse* response) {
   for (auto& policy_decider : policy_deciders_) {
     if (!policy_decider.ShouldAllowResponse(response))
       return false;
   }
   return true;
 }
 
 #pragma mark - RequestTracker management
 
-void WebStateImpl::InitializeRequestTracker(
-    id<CRWRequestTrackerDelegate> delegate) {
-  BrowserState* browser_state = navigation_manager_.GetBrowserState();
-  request_tracker_ = RequestTrackerImpl::CreateTrackerForRequestGroupID(
-      GetRequestGroupID(), browser_state, browser_state->GetRequestContext(),
-      delegate);
-}
-
-void WebStateImpl::CloseRequestTracker() {
-  request_tracker_->Close();
-  request_tracker_ = NULL;
-}
-
-RequestTrackerImpl* WebStateImpl::GetRequestTracker() {
-  DCHECK(request_tracker_.get());
-  return request_tracker_.get();
-}
-
-NSString* WebStateImpl::GetRequestGroupID() {
-  if (request_group_id_.get() == nil)
-    request_group_id_.reset([GenerateNewRequestGroupID() copy]);
-
-  return request_group_id_;
-}
-
 int WebStateImpl::DownloadImage(
     const GURL& url,
     bool is_favicon,
     uint32_t max_bitmap_size,
     bool bypass_cache,
     const ImageDownloadCallback& callback) {
   // |is_favicon| specifies whether the download of the image occurs with
   // cookies or not. Currently, only downloads without cookies are supported.
   // |bypass_cache| is ignored since the downloads never go through a cache.
   DCHECK(is_favicon);
@@ skipping 184 matching lines @@
     const LoadCommittedDetails& load_details) {
   for (auto& observer : observers_)
     observer.NavigationItemCommitted(load_details);
 }
 
 WebState* WebStateImpl::GetWebState() {
   return this;
 }
 
 }  // namespace web