The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/cd9327400f4e5829b2693b19f19de9dfdfe698c8

commit cd9327400f4e5829b2693b19f19de9dfdfe698c8
Author: mrefaat <mrefaat@chromium.org>
Date: Thu Nov 01 16:44:35 2018

Create TabUtil and add GetTabTitle utility function to it

- Create TabUtil file that will contain methods that give tab information
from a given webState but are not considered a tab state property.

- Delete -title from tab.h/mm and create GetTabTitle function in TabUtil
- Create Unit tests for GetTabTitle / Add SetTitle to TestWebState

Bug:  898655 ,  898652 
Change-Id: I9e30eb163d45f008e3a755cba7121526c41d5eee
Reviewed-on: https://chromium-review.googlesource.com/c/1306782
Reviewed-by: Eugene But <eugenebut@chromium.org>
Commit-Queue: Mohammad Refaat <mrefaat@chromium.org>
Cr-Commit-Position: refs/heads/master@{#604613}
[modify] https://crrev.com/cd9327400f4e5829b2693b19f19de9dfdfe698c8/ios/chrome/browser/tabs/BUILD.gn
[modify] https://crrev.com/cd9327400f4e5829b2693b19f19de9dfdfe698c8/ios/chrome/browser/tabs/tab.h
[modify] https://crrev.com/cd9327400f4e5829b2693b19f19de9dfdfe698c8/ios/chrome/browser/tabs/tab.mm
[add] https://crrev.com/cd9327400f4e5829b2693b19f19de9dfdfe698c8/ios/chrome/browser/tabs/tab_title_util.h
[add] https://crrev.com/cd9327400f4e5829b2693b19f19de9dfdfe698c8/ios/chrome/browser/tabs/tab_title_util.mm
[add] https://crrev.com/cd9327400f4e5829b2693b19f19de9dfdfe698c8/ios/chrome/browser/tabs/tab_title_util_unittest.mm
[modify] https://crrev.com/cd9327400f4e5829b2693b19f19de9dfdfe698c8/ios/chrome/browser/ui/activity_services/BUILD.gn
[modify] https://crrev.com/cd9327400f4e5829b2693b19f19de9dfdfe698c8/ios/chrome/browser/ui/activity_services/share_to_data_builder.mm
[modify] https://crrev.com/cd9327400f4e5829b2693b19f19de9dfdfe698c8/ios/chrome/browser/ui/activity_services/share_to_data_builder_unittest.mm
[modify] https://crrev.com/cd9327400f4e5829b2693b19f19de9dfdfe698c8/ios/chrome/browser/ui/bookmarks/bookmark_interaction_controller.mm
[modify] https://crrev.com/cd9327400f4e5829b2693b19f19de9dfdfe698c8/ios/chrome/browser/ui/browser_view_controller.mm
[modify] https://crrev.com/cd9327400f4e5829b2693b19f19de9dfdfe698c8/ios/chrome/browser/ui/tabs/BUILD.gn
[modify] https://crrev.com/cd9327400f4e5829b2693b19f19de9dfdfe698c8/ios/chrome/browser/ui/tabs/tab_strip_controller.mm
[modify] https://crrev.com/cd9327400f4e5829b2693b19f19de9dfdfe698c8/ios/chrome/browser/ui/tabs/tab_strip_controller_unittest.mm
[modify] https://crrev.com/cd9327400f4e5829b2693b19f19de9dfdfe698c8/ios/chrome/browser/ui/tabs/tab_strip_egtest.mm
[modify] https://crrev.com/cd9327400f4e5829b2693b19f19de9dfdfe698c8/ios/web/public/test/fakes/test_web_state.h
[modify] https://crrev.com/cd9327400f4e5829b2693b19f19de9dfdfe698c8/ios/web/public/test/fakes/test_web_state.mm