[trace processor] Add WebView power usage metric This change adds a set of queries that calculate WebView power usage based on the proxy power metric. A follow-up CL will remove webview_cpu_usage.sql when downstream clients are updated to use webview_power_usage.sql. Bug: 158665114 Change-Id: Id7abfc7afd8106f8679b780240c7ce703bd44a10
Perfetto is a production-grade open-source stack for performance instrumentation and trace analysis. It offers services and libraries and for recording system-level and app-level traces, native + java heap profiling, a library for analyzing traces using SQL and a web-based UI to visualize and explore multi-GB traces.
See https://docs.perfetto.dev or the /docs/ directory for documentation.