M103: Feed: log when navigating back from the NTP

This is one of several CLs for logging metrics about specific reasons users leave the feed before loading is finished. A different change will handle the back button hiding Start Surface.


(cherry picked from commit d198633052bc3d48d164d210e22a795f433a3917)

Bug: 1195940, 1326142
Change-Id: Id79df3a4488e06732b52e0a5fd5641560a4d934a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3618350
Reviewed-by: Lijin Shen <lazzzis@google.com>
Reviewed-by: Theresa Sullivan <twellington@chromium.org>
Commit-Queue: Ian Wells <iwells@chromium.org>
Cr-Original-Commit-Position: refs/heads/main@{#1005612}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3659635
Auto-Submit: Ian Wells <iwells@chromium.org>
Commit-Queue: Theresa Sullivan <twellington@chromium.org>
Cr-Commit-Position: refs/branch-heads/5060@{#178}
Cr-Branched-From: b83393d0f4038aeaf67f970a024d8101df7348d1-refs/heads/main@{#1002911}
6 files changed
tree: 37b81e9ad1989ffa2be3050ae645915c2cb41cb9
  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. fuchsia_webengine/
  23. gin/
  24. google_apis/
  25. google_update/
  26. gpu/
  27. headless/
  28. infra/
  29. ios/
  30. ipc/
  31. media/
  32. mojo/
  33. native_client_sdk/
  34. net/
  35. pdf/
  36. ppapi/
  37. printing/
  38. remoting/
  39. rlz/
  40. sandbox/
  41. services/
  42. skia/
  43. sql/
  44. storage/
  45. styleguide/
  46. testing/
  47. third_party/
  48. tools/
  49. ui/
  50. url/
  51. weblayer/
  52. .clang-format
  53. .clang-tidy
  54. .eslintrc.js
  55. .git-blame-ignore-revs
  56. .gitattributes
  57. .gitignore
  58. .gn
  59. .mailmap
  60. .rustfmt.toml
  61. .vpython
  62. .vpython3
  63. .yapfignore
  64. AUTHORS
  65. BUILD.gn
  66. CODE_OF_CONDUCT.md
  67. codereview.settings
  68. DEPS
  69. DIR_METADATA
  70. ENG_REVIEW_OWNERS
  71. LICENSE
  72. LICENSE.chromium_os
  73. OWNERS
  74. PRESUBMIT.py
  75. PRESUBMIT_test.py
  76. PRESUBMIT_test_mocks.py
  77. README.md
  78. WATCHLISTS
README.md

Logo Chromium

Chromium is an open-source browser project that aims to build a safer, faster, and more stable way for all users to experience the web.

The project's web site is https://www.chromium.org.

To check out the source code locally, don't use git clone! Instead, follow the instructions on how to get the code.

Documentation in the source is rooted in docs/README.md.

Learn how to Get Around the Chromium Source Code Directory Structure .

For historical reasons, there are some small top level directories. Now the guidance is that new top level directories are for product (e.g. Chrome, Android WebView, Ash). Even if these products have multiple executables, the code should be in subdirectories of the product.

If you found a bug, please file it at https://crbug.com/new.