2104 // Used in comparing the expected timeline of a frame to the actual timeline.
2150   // Indicates the start of expected timeline slice for SurfaceFrames.
2168     // Pid of the app. Used in creating the timeline tracks (and slices) inside
2174   // Indicates the start of actual timeline slice for SurfaceFrames. Also
2193     // Pid of the app. Used in creating the timeline tracks (and slices) inside
2208   // Indicates the start of expected timeline slice for DisplayFrames.
2221     // Pid of SurfaceFlinger. Used in creating the timeline tracks (and slices)
2226   // Indicates the start of actual timeline slice for DisplayFrames. Also
2240     // Pid of SurfaceFlinger. Used in creating the timeline tracks (and slices)
4172   optional string timeline = 4;  field
4178   optional string timeline = 4;  field
4184   optional string timeline = 4;  field
4190   optional string timeline = 4;  field
5067   optional string timeline = 1;  field
8797   // timeline view.
8806   // from other sources (e.g. ftrace) for the same thread into a single timeline