Merge "Change CLOCK_MONOTONIC to CLOCK_MONOTONIC_RAW for GpuWorkPeriodEvent comments." into tm-dev

    uint32_t uid;

    // The start time of the period in nanoseconds. The clock must be

    // CLOCK_MONOTONIC, as returned by the ktime_get_ns(void) function.

    // CLOCK_MONOTONIC_RAW, as returned by the ktime_get_raw_ns(void) function.

    uint64_t start_time_ns;

    // The end time of the period in nanoseconds. The clock must be

    // CLOCK_MONOTONIC, as returned by the ktime_get_ns(void) function.

    // CLOCK_MONOTONIC_RAW, as returned by the ktime_get_raw_ns(void) function.

    uint64_t end_time_ns;

    // The amount of time the GPU was running GPU work for |uid| during the