Use flag "pdf-use-skia-renderer" to switch PDF viewer's renderer

This is a reland for CL [1].

Link flag "pdf-use-skia-renderer" with PDFiumEngine so that it can
actually switch the renderer type for the PDF viewer upon
initialization.

This CL also changes PDFiumTestBase and tests derived from it into
parameterized tests so that they can be tested with Skia renderer
enabled:
- For the tests which involve image rendering results comparison, add
  the Skia expectations for them.
- Test PDFiumPageImageDataTest.ImageData is currently skipped because
  it crashes when Skia renderer is in use.
- Disable PDFiumPageThumbnailTest.GenerateThumbnail on macOS with
  ARM64. The test expectations need to be updated before it can be
  re-enabled.

[1] https://chromium-review.googlesource.com/4000168

Bug: 1379872,1382257
Change-Id: I140e8769d7102bc9070cfa2f1c39b95e59c6e872
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4021705
Reviewed-by: Lei Zhang <thestig@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Commit-Queue: Nigi <nigi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1070525}
33 files changed
tree: a3039942027283d4871a39a85b4e7e5fa11cae87
  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. AUTHORS
  63. BUILD.gn
  64. CODE_OF_CONDUCT.md
  65. codereview.settings
  66. DEPS
  67. DIR_METADATA
  68. ENG_REVIEW_OWNERS
  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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