[ios] Move WebStateList to ios/chrome/browser/web_state_list.

ios/chrome/browser/web_state_list/web_state_list.mm

 // Copyright 2017 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/shared/chrome/browser/tabs/web_state_list.h"
+#import "ios/chrome/browser/web_state_list/web_state_list.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
-#import "ios/shared/chrome/browser/tabs/web_state_list_delegate.h"
-#import "ios/shared/chrome/browser/tabs/web_state_list_observer.h"
-#import "ios/shared/chrome/browser/tabs/web_state_list_order_controller.h"
-#import "ios/shared/chrome/browser/tabs/web_state_opener.h"
+#import "ios/chrome/browser/web_state_list/web_state_list_delegate.h"
+#import "ios/chrome/browser/web_state_list/web_state_list_observer.h"
+#import "ios/chrome/browser/web_state_list/web_state_list_order_controller.h"
+#import "ios/chrome/browser/web_state_list/web_state_opener.h"
 #import "ios/web/public/navigation_manager.h"
 #import "ios/web/public/web_state/web_state.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
 // Wrapper around a WebState stored in a WebStateList.
 class WebStateList::WebStateWrapper {
  public:
@@ skipping 291 matching lines @@
     } else if (found_index != kInvalidIndex) {
       return found_index;
     }
   }
 
   return found_index;
 }
 
 // static
 const int WebStateList::kInvalidIndex;