Add histogram to track SVGImage::DataChanged per document

This CL adds the following histograms to know the impact of SVGImage
improvement per document of the outermost main frame. Especially, we are
interested in the time until finishing parsing the HTML.

- Blink.Layout.SVGImage.Count.InOutermostMainFrame
- Blink.Layout.SVGImage.TotalTime.InOutermostMainFrame

Bug: 336382906
Change-Id: Ia26773a6029802c19137ebb429ab1aa11478d8b7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5654270
Reviewed-by: Fredrik Söderquist <fs@opera.com>
Reviewed-by: Takashi Toyoshima <toyoshim@chromium.org>
Commit-Queue: Minoru Chikamune <chikamune@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1321529}
NOKEYCHECK=True
GitOrigin-RevId: 70368f7cea76b6ad83cf4bf01f5fa1fdbbe1df5d
1 file changed
tree: a0a0bf6431699e1d7cfb3ef877ef32e9a51244c1
  1. accessibility/
  2. aggregation_service/
  3. android/
  4. binary_size/
  5. bisect/
  6. bisect_repackage/
  7. browserbench-webdriver/
  8. captured_sites/
  9. cast3p/
  10. cfi/
  11. check_ecs_deps/
  12. checkbins/
  13. checklicenses/
  14. checkperms/
  15. checkteamtags/
  16. chrome_extensions/
  17. chromeos/
  18. clang/
  19. code_coverage/
  20. codeql/
  21. compile_test/
  22. cr/
  23. crates/
  24. crbug/
  25. cros/
  26. cygprofile/
  27. determinism/
  28. diagnosis/
  29. disable_tests/
  30. dromaeo_benchmark_runner/
  31. dump_process_memory/
  32. emacs/
  33. find_runtime_symbols/
  34. flags/
  35. flakiness/
  36. fuchsia/
  37. gdb/
  38. generate_library_loader/
  39. generate_shim_headers/
  40. generate_stubs/
  41. get_asan_chrome/
  42. get_swarming_logs/
  43. git/
  44. gn/
  45. grd/
  46. grit/
  47. gritsettings/
  48. idl_parser/
  49. imagediff/
  50. infra/
  51. interactive_ui_tests/
  52. ipc_fuzzer/
  53. json_comment_eater/
  54. json_data_generator/
  55. json_schema_compiler/
  56. json_to_struct/
  57. l10n/
  58. licenses/
  59. linux/
  60. lldb/
  61. mac/
  62. mb/
  63. md_browser/
  64. media_engagement_preload/
  65. memory/
  66. metrics/
  67. msan/
  68. nix/
  69. nocompile/
  70. oobe/
  71. origin_trials/
  72. page_cycler/
  73. perf/
  74. perfbot-analysis/
  75. pgo/
  76. pixel_test/
  77. polymer/
  78. privacy_budget/
  79. profiling/
  80. protoc_wrapper/
  81. python/
  82. real_world_impact/
  83. resources/
  84. rust/
  85. search_engine_choice/
  86. security/
  87. site_compare/
  88. stats_viewer/
  89. strict_enum_value_checker/
  90. style_variable_generator/
  91. sublime/
  92. symsrc/
  93. traceline/
  94. tracing/
  95. traffic_annotation/
  96. translation/
  97. typescript/
  98. ubsan/
  99. usb_gadget/
  100. utr/
  101. v8_context_snapshot/
  102. valgrind/
  103. variations/
  104. vim/
  105. visual_debugger/
  106. vscode/
  107. web_bluetooth/
  108. web_dev_style/
  109. whats_new/
  110. win/
  111. .gitignore
  112. .style.yapf
  113. add_header.py
  114. add_header_test.py
  115. apply_cpplint_header_guard.py
  116. auto-nav.py
  117. autotest.py
  118. bash-completion
  119. bisect-builds.py
  120. bisect_test.py
  121. boilerplate.py
  122. buildstate.bat
  123. buildstate.py
  124. check_git_config.py
  125. check_grd_for_unused_strings.py
  126. clang-format-js
  127. DEPS
  128. diagnose-me.py
  129. DIR_METADATA
  130. download_optimization_profile.py
  131. hresult_to_enum.py
  132. include_tracer.py
  133. ipc_messages_log.py
  134. make_gtest_filter.py
  135. make_gtest_filter_test.py
  136. mojo_messages_log.py
  137. multi_process_rss.py
  138. omahaproxy.py
  139. OWNERS
  140. perry.py
  141. PRESUBMIT.py
  142. remove_stale_files.py
  143. remove_stale_pyc_files.py
  144. roll_webgl_conformance.py
  145. run-swarmed.py
  146. sample_clang_tidy_results.py
  147. sort_sources.py
  148. uberblame.py
  149. unused-symbols-report.py
  150. update_pgo_profiles.py
  151. yes_no.py