Revert "Send SIGPROF signals on the profiler event processor thread"

test/cctest/test-cpu-profiler.cc

Index: test/cctest/test-cpu-profiler.cc
diff --git a/test/cctest/test-cpu-profiler.cc b/test/cctest/test-cpu-profiler.cc
index d294f195f4e244b74306464bdb2199773c6cd0e0..b76846b97222a1099799d98fe44b614b1b69753a 100644
--- a/test/cctest/test-cpu-profiler.cc
+++ b/test/cctest/test-cpu-profiler.cc
@@ -20,7 +20,7 @@ using i::TokenEnumerator;
 TEST(StartStop) {
   CpuProfilesCollection profiles;
   ProfileGenerator generator(&profiles);
-  ProfilerEventsProcessor processor(&generator, NULL, 100);
+  ProfilerEventsProcessor processor(&generator);
   processor.Start();
   processor.Stop();
   processor.Join();
@@ -84,7 +84,7 @@ TEST(CodeEvents) {
   CpuProfilesCollection profiles;
   profiles.StartProfiling("", 1);
   ProfileGenerator generator(&profiles);
-  ProfilerEventsProcessor processor(&generator, NULL, 100);
+  ProfilerEventsProcessor processor(&generator);
   processor.Start();
 
   // Enqueue code creation events.
@@ -145,7 +145,7 @@ TEST(TickEvents) {
   CpuProfilesCollection profiles;
   profiles.StartProfiling("", 1);
   ProfileGenerator generator(&profiles);
-  ProfilerEventsProcessor processor(&generator, NULL, 100);
+  ProfilerEventsProcessor processor(&generator);
   processor.Start();
 
   processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,
@@ -235,7 +235,7 @@ TEST(Issue1398) {
   CpuProfilesCollection profiles;
   profiles.StartProfiling("", 1);
   ProfileGenerator generator(&profiles);
-  ProfilerEventsProcessor processor(&generator, NULL, 100);
+  ProfilerEventsProcessor processor(&generator);
   processor.Start();
 
   processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,