[iOS][evolve-disco-header] Bring back large fakebox and test cases

This CL brings back the large fakebox removed in crrev.com/c/6153895. It
also repositions the fakebox and top margins accordingly so that when
the Google logo is enlarted, the top margin is shrunk so that the
visibility of the feed is not reduced.

Screenshot: https://screenshot.googleplex.com/7ZB73QKskAE8BRn

Bug: 359325090
Change-Id: I48e16ef1fe5c406b0018fc16af0412a552a10a18
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6235131
Reviewed-by: Scott Yoder <scottyoder@google.com>
Auto-Submit: Ginny Huang <ginnyhuang@chromium.org>
Commit-Queue: Ginny Huang <ginnyhuang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1419520}
NOKEYCHECK=True
GitOrigin-RevId: b66e04c4a296a19720f631dc2e72e1c2725ae01a
7 files changed
tree: 075242a4f0149cd1ab17fc340f977787956a90ce
  1. build/
  2. chrome/
  3. components/
  4. google_internal/
  5. intents/
  6. net/
  7. public/
  8. testing/
  9. third_party/
  10. tools/
  11. web/
  12. web_view/
  13. .swift-format
  14. BUILD.gn
  15. COMMON_METADATA
  16. DEPS
  17. DIR_METADATA
  18. features.gni
  19. OWNERS
  20. PRESUBMIT.py
  21. PRESUBMIT_test.py
  22. README.md
README.md

This directory holds code related to Chrome for iOS. See this document for a description of the structure underneath this directory.