[ios] Relayout Content Suggestions header when logo is removed

With content-suggestions-header-migration enabled, the header's height
has a new constraint that needs to be updated when the logo is hidden
upon a change to the search engine. Also, layoutIfNeeded needs to be
called as an equivalent to the default
[self.collectionSynchronizer invalidateLayout] call to force a relayout.

(cherry picked from commit 0e34b0aa22ae8a64f1debe557963506801351864)

Fixed: 1316574, 1316359
Change-Id: Ibff34e87f7c82fb5db6c1d9793e99bd18047b7fa
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3588085
Auto-Submit: Chris Lu <thegreenfrog@chromium.org>
Reviewed-by: Sergio Collazos <sczs@chromium.org>
Commit-Queue: Sergio Collazos <sczs@chromium.org>
Cr-Original-Commit-Position: refs/heads/main@{#993459}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3600358
Commit-Queue: Chris Lu <thegreenfrog@chromium.org>
Cr-Commit-Position: refs/branch-heads/5005@{#83}
Cr-Branched-From: 5b4d9450fee01f821b6400e947b3839727643a71-refs/heads/main@{#992738}
1 file changed
tree: 6a09d7a159851f438ccdf19809003d093aeb1f0e
  1. android_webview/
  2. apps/
  3. ash/
  4. base/
  5. build/
  6. build_overrides/
  7. buildtools/
  8. cc/
  9. chrome/
  10. chromecast/
  11. chromeos/
  12. codelabs/
  13. components/
  14. content/
  15. courgette/
  16. crypto/
  17. dbus/
  18. device/
  19. docs/
  20. extensions/
  21. fuchsia/
  22. gin/
  23. google_apis/
  24. google_update/
  25. gpu/
  26. headless/
  27. infra/
  28. ios/
  29. ipc/
  30. media/
  31. mojo/
  32. native_client_sdk/
  33. net/
  34. pdf/
  35. ppapi/
  36. printing/
  37. remoting/
  38. rlz/
  39. sandbox/
  40. services/
  41. skia/
  42. sql/
  43. storage/
  44. styleguide/
  45. testing/
  46. third_party/
  47. tools/
  48. ui/
  49. url/
  50. weblayer/
  51. .clang-format
  52. .clang-tidy
  53. .eslintrc.js
  54. .git-blame-ignore-revs
  55. .gitattributes
  56. .gitignore
  57. .gn
  58. .mailmap
  59. .rustfmt.toml
  60. .vpython
  61. .vpython3
  62. .yapfignore
  63. AUTHORS
  64. BUILD.gn
  65. CODE_OF_CONDUCT.md
  66. codereview.settings
  67. DEPS
  68. DIR_METADATA
  69. ENG_REVIEW_OWNERS
  70. LICENSE
  71. LICENSE.chromium_os
  72. OWNERS
  73. PRESUBMIT.py
  74. PRESUBMIT_test.py
  75. PRESUBMIT_test_mocks.py
  76. README.md
  77. WATCHLISTS
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