Support higher CPU profiler sampling rate on posix systems

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 7b5fc2b0fe7f9daa418ef9cc06338284a7bc0281..2225b3a3b3ade83468f46c74da1bb5deb31699ed 100644
--- a/test/cctest/test-cpu-profiler.cc
+++ b/test/cctest/test-cpu-profiler.cc
@@ -48,7 +48,7 @@ using i::Vector;
 TEST(StartStop) {
   CpuProfilesCollection profiles;
   ProfileGenerator generator(&profiles);
-  ProfilerEventsProcessor processor(&generator);
+  ProfilerEventsProcessor processor(&generator, NULL, 100);
   processor.Start();
   processor.StopSynchronously();
   processor.Join();
@@ -139,7 +139,7 @@ TEST(CodeEvents) {
   CpuProfilesCollection* profiles = new CpuProfilesCollection;
   profiles->StartProfiling("", 1, false);
   ProfileGenerator generator(profiles);
-  ProfilerEventsProcessor processor(&generator);
+  ProfilerEventsProcessor processor(&generator, NULL, 100);
   processor.Start();
   CpuProfiler profiler(isolate, profiles, &generator, &processor);
 
@@ -201,7 +201,7 @@ TEST(TickEvents) {
   CpuProfilesCollection* profiles = new CpuProfilesCollection;
   profiles->StartProfiling("", 1, false);
   ProfileGenerator generator(profiles);
-  ProfilerEventsProcessor processor(&generator);
+  ProfilerEventsProcessor processor(&generator, NULL, 100);
   processor.Start();
   CpuProfiler profiler(isolate, profiles, &generator, &processor);
 
@@ -270,7 +270,7 @@ TEST(Issue1398) {
   CpuProfilesCollection* profiles = new CpuProfilesCollection;
   profiles->StartProfiling("", 1, false);
   ProfileGenerator generator(profiles);
-  ProfilerEventsProcessor processor(&generator);
+  ProfilerEventsProcessor processor(&generator, NULL, 100);
   processor.Start();
   CpuProfiler profiler(isolate, profiles, &generator, &processor);