- Change Group.prototype.size to .length
- Use window.requestAnimationFrame when streaming-loading files to show
  the loading animation
- Limit width of the timeline-track legend and add 'title' attribute
  to show the full text when cropped
- Add duration for selected timeline events in timeline-track legend
- Better error message when the local symbol server is not available

Bug: v8:10644
Change-Id: Icdf2042341c9355ecb55e2fd8e6a4fa0feb5968f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3003151Reviewed-by: Patrick Thier <pthier@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75549}

- Add tests and fix Chunk calculations in Timeline class
- Cache DOM nodes directly as properties in TimelineTrackBase
- Keep track of last focused entry in timeline tracks and reuse it
  to position the tooltip when the view is locked

Bug: v8:10644
Change-Id: I356dcf7eed220df89f6a7ff926f00f78b119160e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2968943
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Patrick Thier <pthier@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75224}

- Open and focus separate views for each log entry
- Map.prototype.parent is now a getter
- Fix SharedLibLogEntry tooltips
- Store codeEntry in IcLogEntry for linking back to code objects
- New property-link-table which is used in tooltip and code-panel
- Ignore right-click events in the timeline-tracks

Bug: v8:10644, v8:11835
Change-Id: Id2fe5002b776adf362b1580b96082c84790a6ef0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2960804Reviewed-by: Patrick Thier <pthier@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75150}

- Scale svg flamechart directly instead of rerendering
- Convert markers to SVG as well
- Fix scroll position after zooming
- Support tooltips for flamechart

Change-Id: I01c966d2705989cf45a91c64aa4302a8de035414
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2944894
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Patrick Thier <pthier@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75008}

- Introduce proper TickLogEntry and use a separate Timeline object
- Update the main rendering to use SVG for speed
- Separate custom-elements: timeline-track-map and timeline-track-tick
- Revamp flame-chart drawing
- Enable map-transitions overlay
- Use mouse position to infer current log-entry instead of individual
  event handlers
- Fix first timelineLegend column header
- Fixing scrollbar-color for FireFox

Change-Id: I7c53c13366b3e4614b1c5592dfaa69d0654a3b5f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2944430
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Patrick Thier <pthier@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74987}

Change the background of source position markers based on the events
they link to.

Bug: v8:10644
Change-Id: I108d9f5670acdaf5835905c2b44648c0eaf6dbd0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2604708
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Sathya Gunasekaran  <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71970}

Bug: v8:10644
Change-Id: I83801396fe683173349d14a7590828ec86587eac
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2575122Reviewed-by: Sathya Gunasekaran  <gsathya@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71655}

Bug: v8:10644
Change-Id: I727f844f3796f37e92c8855e02d519abeee73dc1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2566760
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Sathya Gunasekaran  <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71558}

- Timeline.selection is now a Timeline as well
- Allow remove the current timeline-track selection by double-clicking
  outside-the selection
- Update the timeline-track stats based on the current selection
- Simplify DOM element creation methods
- Add separate SelectionHandler class for timeline-track

Bug: v8:10644
Change-Id: I4f15d6ab4f5ec6b7330e22769472ca3074b00edd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2565130
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Sathya Gunasekaran  <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71497}

- Fix transition view selection and opening of subtrees
- Fix transition colors by storing an index on the uniqueType map
  in the timeline
- Do not reset the current list in the transition view when
  clicking on a map
- Support changing source positions in the source panel
- Highlight the current source position with a pulsing marker
- Fix kColors usage in timeline-track

Bug: v8:10644
Change-Id: I5130f18d9076cb37f9c3c8d585c9e47038ca411b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2562386Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71477}

Make Timeline.selectTimeRange run in O(log(n)) instead of
O(n) comparisons.

Drive-by-fix:
- Use *Index for variable names in Timeline

Bug: v8:10644
Change-Id: I65f3be9f259e6bebcec489526a54712daffd4d15
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2507714
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Auto-Submit: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71461}

- Reuse DOM nodes if possible
- Delay slow DOM node removal to not block the UI
- Fix global time range syncing when adding timelines to the state
- Use a Proxy to cache CSS colors instead of querying CSS properties
  on every access
- Set className on newly create DOM nodes instead of adding to the
  classList
- Use bound functions for event handlers that are added multiple times
- Speed up Chunk.getBreackdown
- Use CSS gradient for timeline-track chunk backgrounds, which is an
  order of magnitude faster than the serialised canvas approach

Bug: v8:10644
Change-Id: Ie2d6d5b404f18e920c10c0a6460669fd4d0b20e8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2539947
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Sathya Gunasekaran  <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71207}

This is a reland of 1ec8f1da

Original change's description:
> [presubmit] Add JS formatting for tools/system-analyzer
>
> Bug: v8:10670
> Change-Id: Ifb653ada003719faff261b6e5b2169db37cffdaf
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2282522
> Reviewed-by: Tamer Tas <tmrts@chromium.org>
> Commit-Queue: Sathya Gunasekaran  <gsathya@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#68909}

Bug: v8:10670
Change-Id: I4903b3eb8ff39a76594324076f0840b06290044e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2307229
Commit-Queue: Sathya Gunasekaran  <gsathya@chromium.org>
Reviewed-by: Tamer Tas <tmrts@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70938}

Add simple log file test with processor.mjs, mostly focusing on parsing
the log file correctly.

Change-Id: Ie8db569b65ecd526ef4474a64d4019f00707d159
Bug: v8:10668
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2484515
Commit-Queue: Dan Elphick <delphick@chromium.org>
Auto-Submit: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70806}

- Avoid private fields (using _xyz instead of #xyz)
- Avoid static fields on classes

These are temporary changes that eventually will be reverted
once FireFox and Safari support it.

Bug: v8:10644
Change-Id: I3d757251eaedef92751970d866882c3d912c7e3e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2464924
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Sathya Gunasekaran  <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70607}

- Use *LogEntry in more places to avoid confusion with HTML Events
- Move Processor.kProperties to IcLogEntry.getPropertyNames
- Move timeline-track legend "All" entry to the end

Bug: v8:10644
Change-Id: I5a9e833ad0570c39d3106955fa2ba00af53b7062
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2463241
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Sathya Gunasekaran  <gsathya@chromium.org>
Auto-Submit: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70606}

Bug: v8:10668
Change-Id: I51f81a66408a4b262f9ac7e6421609c5e485f779
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2435107
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Sathya Gunasekaran  <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70174}

This CL enables showing map details of the selected map coming from
FocusEvent. It also improves UI experience of selecting a map from
map transitions, highlighting selected map.

Additionally, stores information about unique map/IC events in model
for the timeline-track legend.

Bug: v8:10644
Change-Id: Ieb8a2ac0bf1af282d55bce18130192d7178538da
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2387564Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Sathya Gunasekaran  <gsathya@chromium.org>
Commit-Queue: Zeynep Cankara <zcankara@google.com>
Cr-Commit-Position: refs/heads/master@{#69673}

Action items:
* Replace alls css @import with link tags.
* Format all sources in system-analyzer/*.

Bug: v8:10644

Change-Id: I6354cf7b0ed2aca8cdab4888cf9d504a1d963b50
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2367869
Commit-Queue: Zeynep Cankara <zcankara@google.com>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Sathya Gunasekaran  <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69545}

This CL aims to clean the code in App Class to
handle State, View according to the Model-View-Controller
design pattern.

Bug: v8:10644, v8:10735

Link: https://docs.google.com/presentation/d/1ssCIWKS5TIp_PHZRUx2BfElEz6JFrYzz_Ce1h1g8ZBg/edit?usp=sharing

Change-Id: Ie36d437df0df574f505a4396b26526a82215f237
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2324247
Commit-Queue: Zeynep Cankara <zcankara@google.com>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69218}

This CL adds a generic Event Class to unify common
methods of IC and Map events. The Entry Class for IC
Events and V8Map Class for Map Events inherits from
this generic Event Class.

Bug: v8:10644, v8:10735

Change-Id: I77d68fb40ee0ffbe297fcd1a13c3e2b746938168
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2317309
Commit-Queue: Zeynep Cankara <zcankara@google.com>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Sathya Gunasekaran  <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69066}

This CL adds a Timeline Class to handle data interaction
between panels. The timeline class enables to filter the
data based on selected time range.

Bug: v8:10644, v8:10735

Change-Id: I7fbbe1741abc69d2889b0547113e5da10b7f5510
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2315983
Commit-Queue: Zeynep Cankara <zcankara@google.com>
Reviewed-by: Sathya Gunasekaran  <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69056}