Add flow event visualization to Trace Viewer v2. #2083
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This change adds support for visualizing flow events. Flow events with the same ID are connected via cubic Bezier curves, allowing users to trace execution paths across different threads or processes. The parser is updated to handle flow event phases ('s', 't', 'f') and metadata, and new rendering logic is added to draw the connecting lines. Support for filtering flows by category and highlighting flows connected to a selected event is also included.
PiperOrigin-RevId: 845821735
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Add flow event visualization to Trace Viewer v2.
This change adds support for visualizing flow events. Flow events with the same ID are connected via cubic Bezier curves, allowing users to trace execution paths across different threads or processes. The parser is updated to handle flow event phases ('s', 't', 'f') and metadata, and new rendering logic is added to draw the connecting lines. Support for filtering flows by category and highlighting flows connected to a selected event is also included.