Add a separate "process_state" file and target in //chrome/renderer

Currently, whether a process is incognito is stored on the
ChromeRenderThreadObserver. This is not ideal since,
1) It has nothing to do with observing the render thread, and
2) Anything that needs to check whether a process is incognito then
   needs to depend on ChromeRenderThreadObserver, which can make
   cyclical dependencies when trying to extract out pieces from
   the monolithic //chrome/renderer BUILD file.

Fix this by pulling the tracking for is_incognito_process into a new
file, process_state.h, which is in its own source set,
//chrome/renderer:process_state.

This CL should have no effective behavior change.

Bug: None
Change-Id: Ia3ee9e5e71553839c37e9a55cb44ba56353296a4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5824137
Reviewed-by: Erik Chen <erikchen@chromium.org>
Commit-Queue: Devlin Cronin <rdevlin.cronin@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1348378}
8 files changed
tree: b9e95faaae83a1b25f9b4460b083fee03948002c
  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. webkit/
  51. .clang-format
  52. .clang-tidy
  53. .clangd
  54. .eslintrc.js
  55. .git-blame-ignore-revs
  56. .gitallowed
  57. .gitattributes
  58. .gitignore
  59. .gitmodules
  60. .gn
  61. .mailmap
  62. .rustfmt.toml
  63. .vpython3
  64. .yapfignore
  65. ATL_OWNERS
  66. AUTHORS
  67. BUILD.gn
  68. CODE_OF_CONDUCT.md
  69. codereview.settings
  70. CPPLINT.cfg
  71. CRYPTO_OWNERS
  72. DEPS
  73. DIR_METADATA
  74. LICENSE
  75. LICENSE.chromium_os
  76. OWNERS
  77. PRESUBMIT.py
  78. PRESUBMIT_test.py
  79. PRESUBMIT_test_mocks.py
  80. README.md
  81. WATCHLISTS
README.md

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