Renames SessionChanges and SessionCellData to have a TabSwitcher prefix.

ios/chrome/browser/ui/tab_switcher/tab_switcher_model.mm

 // Copyright 2015 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/browser/ui/tab_switcher/tab_switcher_model.h"
 
 #include <memory>
 
 #include "base/memory/ptr_util.h"
 #include "components/browser_sync/profile_sync_service.h"
 #include "components/sessions/core/session_id.h"
 #include "components/signin/core/browser/signin_manager.h"
 #include "ios/chrome/browser/browser_state/chrome_browser_state.h"
 #include "ios/chrome/browser/signin/signin_manager_factory.h"
 #include "ios/chrome/browser/sync/ios_chrome_profile_sync_service_factory.h"
 #include "ios/chrome/browser/sync/sync_setup_service.h"
 #include "ios/chrome/browser/sync/sync_setup_service_factory.h"
 #import "ios/chrome/browser/tabs/tab.h"
 #import "ios/chrome/browser/tabs/tab_model.h"
 #include "ios/chrome/browser/ui/ntp/recent_tabs/synced_sessions.h"
-#import "ios/chrome/browser/ui/tab_switcher/session_changes.h"
 #import "ios/chrome/browser/ui/tab_switcher/tab_model_snapshot.h"
 #import "ios/chrome/browser/ui/tab_switcher/tab_switcher_cache.h"
 #import "ios/chrome/browser/ui/tab_switcher/tab_switcher_model_private.h"
 #import "ios/chrome/browser/ui/tab_switcher/tab_switcher_panel_cell.h"
 
 bool TabSwitcherSessionTypeIsLocalSession(TabSwitcherSessionType sessionType) {
   return sessionType == TabSwitcherSessionType::OFF_THE_RECORD_SESSION ||
          sessionType == TabSwitcherSessionType::REGULAR_SESSION;
 }
 
@@ skipping 363 matching lines @@
   [self tabModelChanged:model];
 }
 
 - (void)tabModel:(TabModel*)model
     didChangeTabSnapshot:(Tab*)tab
                withImage:(UIImage*)image {
   [self tabModelChanged:model];
 }
 
 @end