[profiler] Fix a memory leak of CodeEvent objects

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 6ec71a2ab3e3bdb77717880200f044e0633b277c..6dd5966dde48a18804fb90dd9dc0195d7d36ed25 100644
--- a/test/cctest/test-cpu-profiler.cc
+++ b/test/cctest/test-cpu-profiler.cc
@@ -78,7 +78,7 @@ static const char* reason(const i::DeoptimizeReason reason) {
 TEST(StartStop) {
   i::Isolate* isolate = CcTest::i_isolate();
   CpuProfilesCollection profiles(isolate);
-  ProfileGenerator generator(isolate, &profiles);
+  ProfileGenerator generator(&profiles);
   std::unique_ptr<ProfilerEventsProcessor> processor(
       new ProfilerEventsProcessor(isolate, &generator,
                                   v8::base::TimeDelta::FromMicroseconds(100)));
@@ -163,7 +163,7 @@ TEST(CodeEvents) {
   i::AbstractCode* args4_code = CreateCode(&env);
 
   CpuProfilesCollection* profiles = new CpuProfilesCollection(isolate);
-  ProfileGenerator* generator = new ProfileGenerator(isolate, profiles);
+  ProfileGenerator* generator = new ProfileGenerator(profiles);
   ProfilerEventsProcessor* processor = new ProfilerEventsProcessor(
       isolate, generator, v8::base::TimeDelta::FromMicroseconds(100));
   CpuProfiler profiler(isolate, profiles, generator, processor);
@@ -231,7 +231,7 @@ TEST(TickEvents) {
   i::AbstractCode* frame3_code = CreateCode(&env);
 
   CpuProfilesCollection* profiles = new CpuProfilesCollection(isolate);
-  ProfileGenerator* generator = new ProfileGenerator(isolate, profiles);
+  ProfileGenerator* generator = new ProfileGenerator(profiles);
   ProfilerEventsProcessor* processor =
       new ProfilerEventsProcessor(CcTest::i_isolate(), generator,
                                   v8::base::TimeDelta::FromMicroseconds(100));
@@ -304,7 +304,7 @@ TEST(Issue1398) {
   i::AbstractCode* code = CreateCode(&env);
 
   CpuProfilesCollection* profiles = new CpuProfilesCollection(isolate);
-  ProfileGenerator* generator = new ProfileGenerator(isolate, profiles);
+  ProfileGenerator* generator = new ProfileGenerator(profiles);
   ProfilerEventsProcessor* processor =
       new ProfilerEventsProcessor(CcTest::i_isolate(), generator,
                                   v8::base::TimeDelta::FromMicroseconds(100));
@@ -1077,7 +1077,7 @@ static void TickLines(bool optimize) {
   CHECK(code_address);
 
   CpuProfilesCollection* profiles = new CpuProfilesCollection(isolate);
-  ProfileGenerator* generator = new ProfileGenerator(isolate, profiles);
+  ProfileGenerator* generator = new ProfileGenerator(profiles);
   ProfilerEventsProcessor* processor =
       new ProfilerEventsProcessor(CcTest::i_isolate(), generator,
                                   v8::base::TimeDelta::FromMicroseconds(100));