Fix tab title display when opening about pages from about:about pages

[srirambv]

• Did you search for similar issues before submitting this one?
  Yes

• Describe the issue you encountered:
  Fix tab title display when opening about pages from about:about pages

• Platform (Win7, 8, 10? macOS? Linux distro?):
  All

• Brave Version (revision SHA):
  Brave 0.14.0
  rev e6fba42

• Steps to reproduce:

  1. Do a clean install of 0.14.0 RC1
  2. Open about:about page in a new tab
  3. Click on the about pages, each about page opened either has Untitled or about:<pagename until mouse over the tab
  4. Open about:hisotry in a new tab, open about:styles in the same tab, title is not changed until mouse over/away from the tab

• Actual result:
  Tab title not shown until mouse over

• Expected result:
  Should show the tab title immediatly after opening

• Will the steps above reproduce in a fresh profile? If not what other info can be added?
  yes

• Is this an issue in the currently released version?
  No

• Can this issue be consistently reproduced?
  Yes

• Extra QA steps:
  1.
  2.
  3.

• Screenshot if needed:

• Any related issues:
  Fixed display of text for new tabs #7724
  cc: @cezaraugusto

[bbondy]

Definitely a bug but doesn't need to be in 0.14.0 so removing. Thanks.

[cezaraugusto]

closing in favor of #7765