perf tools: Rename perf_event_ops to perf_tool

To better reflect that it became the base class for all tools, that must
be in each tool struct and where common stuff will be put.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-qgpc4msetqlwr8y2k7537cxe@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 31d4973..42a7d96 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -826,7 +826,7 @@
 			perf_event__process_sample(event, evsel, &sample, machine);
 		else if (event->header.type < PERF_RECORD_MAX) {
 			hists__inc_nr_events(&evsel->hists, event->header.type);
-			perf_event__process(&top.ops, event, &sample, machine);
+			perf_event__process(&top.tool, event, &sample, machine);
 		} else
 			++self->hists.stats.nr_unknown_events;
 	}
@@ -968,11 +968,11 @@
 		goto out_delete;
 
 	if (top.target_tid != -1)
-		perf_event__synthesize_thread_map(&top.ops, top.evlist->threads,
+		perf_event__synthesize_thread_map(&top.tool, top.evlist->threads,
 						  perf_event__process,
 						  &top.session->host_machine);
 	else
-		perf_event__synthesize_threads(&top.ops, perf_event__process,
+		perf_event__synthesize_threads(&top.tool, perf_event__process,
 					       &top.session->host_machine);
 	start_counters(top.evlist);
 	top.session->evlist = top.evlist;