Expose TickSample and its APIs in v8-profiler.h

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 3bdf8add2b61e6256c9be558b54be25294fc2f42..3b34976d85b271c984a18b31bdfcdd5c38a7a87b 100644
--- a/test/cctest/test-cpu-profiler.cc
+++ b/test/cctest/test-cpu-profiler.cc
@@ -81,7 +81,7 @@ static void EnqueueTickSampleEvent(ProfilerEventsProcessor* proc,
                                    i::Address frame1,
                                    i::Address frame2 = NULL,
                                    i::Address frame3 = NULL) {
-  i::TickSample* sample = proc->StartTickSample();
+  v8::TickSample* sample = proc->StartTickSample();
   sample->pc = frame1;
   sample->tos = frame1;
   sample->frames_count = 0;
@@ -306,10 +306,10 @@ TEST(Issue1398) {
 
   profiler_listener.CodeCreateEvent(i::Logger::BUILTIN_TAG, code, "bbb");
 
-  i::TickSample* sample = processor->StartTickSample();
+  v8::TickSample* sample = processor->StartTickSample();
   sample->pc = code->address();
   sample->tos = 0;
-  sample->frames_count = i::TickSample::kMaxFramesCount;
+  sample->frames_count = v8::TickSample::kMaxFramesCount;
   for (unsigned i = 0; i < sample->frames_count; ++i) {
     sample->stack[i] = code->address();
   }
@@ -328,7 +328,7 @@ TEST(Issue1398) {
     ++actual_depth;
   }
 
-  CHECK_EQ(1 + i::TickSample::kMaxFramesCount, actual_depth);  // +1 for PC.
+  CHECK_EQ(1 + v8::TickSample::kMaxFramesCount, actual_depth);  // +1 for PC.
 }
 
 TEST(DeleteAllCpuProfiles) {