| commit | 6d2f5ad2eba05d191746670be8e52be0096d7d4a | [log] [tgz] |
|---|---|---|
| author | Daniel White <danieltwhite@google.com> | Wed Nov 10 19:16:46 2021 |
| committer | Chromium LUCI CQ <chromium-scoped@luci-project-accounts.iam.gserviceaccount.com> | Wed Nov 10 19:16:46 2021 |
| tree | c0a6ecceeccbb90a9ea6fd133163195e2d947098 | |
| parent | 9d87d866879d7421bafa958e521cd1efc389fa1e [diff] |
Capturing and logging each frames' First Contentful Paint time; The new feature registers a PerformanceObserver event listener that listens to 'paint' events, captures the time the event was recorded, and forwards this time back to the browser which logs these times in UMA. In a future CL, the browser will aggregate these times across all the page's frames and determine the earliest time which will also be logged in UMA. Bug: 1267902 Change-Id: I2e627f144b7f7563f056a771564c2bad9a003e61 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3262711 Commit-Queue: Daniel White <danieltwhite@google.com> Reviewed-by: Ali Juma <ajuma@chromium.org> Cr-Commit-Position: refs/heads/main@{#940419}
ChromiumChromium 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.