Remove raw_ptr in arguments and return value.

raw_ptr was meant to be used in member variables only. Some developers
are using them in return values and arguments. This isn't really a
problem, but not very useful.

In most cases, developers are copy-pasting nearby code, causing this
pattern to propagate further away. So it is better to stop this early.

**Hidden motivation**: I am playing with automatically finding every
pre-existing dangling pointers: https://godbolt.org/z/o8adYnc7a
`raw_ptr` in arguments causes declaration and implementation signature
to differ in those locations. If we could get rid of them here, my life
would be slightly easier.

Bug: 1400059
Change-Id: I7096057c1f7108dabb086820ee460302cc7f7b16
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4567506
Owners-Override: Bartek Nowierski <bartekn@chromium.org>
Commit-Queue: Arthur Sonzogni <arthursonzogni@chromium.org>
Reviewed-by: Bartek Nowierski <bartekn@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1149633}
25 files changed
tree: 9532ed85ded7594322aefbbca5fc2ba414372da1
  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_web/
  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. .vpython3
  61. .yapfignore
  62. ATL_OWNERS
  63. AUTHORS
  64. BUILD.gn
  65. CODE_OF_CONDUCT.md
  66. codereview.settings
  67. DEPS
  68. DIR_METADATA
  69. LICENSE
  70. LICENSE.chromium_os
  71. OWNERS
  72. PRESUBMIT.py
  73. PRESUBMIT_test.py
  74. PRESUBMIT_test_mocks.py
  75. README.md
  76. WATCHLISTS
README.md

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