Make use of v8::TickSample instead of v8::internal::TickSample in logger.

src/log.cc

Index: src/log.cc
diff --git a/src/log.cc b/src/log.cc
index f7607783e3180ee1cdf5906dec6e1da3e49cf1c4..0a02e66b3bfe9bff3e135b9e2d42a9dc0f407faa 100644
--- a/src/log.cc
+++ b/src/log.cc
@@ -21,7 +21,6 @@
 #include "src/log-utils.h"
 #include "src/macro-assembler.h"
 #include "src/perf-jit.h"
-#include "src/profiler/cpu-profiler-inl.h"
 #include "src/profiler/profiler-listener.h"
 #include "src/profiler/tick-sample.h"
 #include "src/runtime-profiler.h"
@@ -31,7 +30,6 @@
 namespace v8 {
 namespace internal {
 
-
 #define DECLARE_EVENT(ignore1, name) name,
 static const char* kLogEventsNames[CodeEventListener::NUMBER_OF_LOG_EVENTS] = {
     LOG_EVENTS_AND_TAGS_LIST(DECLARE_EVENT)};
@@ -557,7 +555,7 @@ class Profiler: public base::Thread {
   void Disengage();
 
   // Inserts collected profiling data into buffer.
-  void Insert(TickSample* sample) {
+  void Insert(v8::TickSample* sample) {
     if (paused_)
       return;
 
@@ -578,7 +576,7 @@ class Profiler: public base::Thread {
 
  private:
   // Waits for a signal and removes profiling data.
-  bool Remove(TickSample* sample) {
+  bool Remove(v8::TickSample* sample) {
     buffer_semaphore_.Wait();  // Wait for an element.
     *sample = buffer_[base::NoBarrier_Load(&tail_)];
     bool result = overflow_;
@@ -595,7 +593,7 @@ class Profiler: public base::Thread {
   // Cyclic buffer for communicating profiling samples
   // between the signal handler and the worker thread.
   static const int kBufferSize = 128;
-  TickSample buffer_[kBufferSize];  // Buffer storage.
+  v8::TickSample buffer_[kBufferSize];  // Buffer storage.
   int head_;  // Index to the buffer head.
   base::Atomic32 tail_;             // Index to the buffer tail.
   bool overflow_;  // Tell whether a buffer overflow has occurred.
@@ -619,10 +617,10 @@ class Profiler: public base::Thread {
 //
 class Ticker: public sampler::Sampler {
  public:
-  Ticker(Isolate* isolate, int interval):
-      sampler::Sampler(reinterpret_cast<v8::Isolate*>(isolate)),
-      profiler_(NULL),
-      sampling_thread_(new SamplingThread(this, interval)) {}
+  Ticker(Isolate* isolate, int interval)
+      : sampler::Sampler(reinterpret_cast<v8::Isolate*>(isolate)),
+        profiler_(nullptr),
+        sampling_thread_(new SamplingThread(this, interval)) {}
 
   ~Ticker() {
     if (IsActive()) Stop();
@@ -630,7 +628,7 @@ class Ticker: public sampler::Sampler {
   }
 
   void SetProfiler(Profiler* profiler) {
-    DCHECK(profiler_ == NULL);
+    DCHECK(profiler_ == nullptr);
     profiler_ = profiler;
     IncreaseProfilingDepth();
     if (!IsActive()) Start();
@@ -638,7 +636,7 @@ class Ticker: public sampler::Sampler {
   }
 
   void ClearProfiler() {
-    profiler_ = NULL;
+    profiler_ = nullptr;
     if (IsActive()) Stop();
     DecreaseProfilingDepth();
     sampling_thread_->Join();
@@ -646,15 +644,15 @@ class Ticker: public sampler::Sampler {
 
   void SampleStack(const v8::RegisterState& state) override {
     if (!profiler_) return;
-    v8::Isolate* v8_isolate = isolate();
-    Isolate* i_isolate = reinterpret_cast<Isolate*>(v8_isolate);
 #if defined(USE_SIMULATOR)
-    if (!SimulatorHelper::FillRegisters(i_isolate,
-                                        const_cast<v8::RegisterState*>(&state)))
-      return;
+    Isolate* i_isolate = reinterpret_cast<Isolate*>(isolate());
+    v8::RegisterState regs;
+    if (!SimulatorHelper::FillRegisters(i_isolate, &regs)) return;
+#else
+    const v8::RegisterState& regs = state;
 #endif
-    TickSample sample;
-    sample.Init(i_isolate, state, TickSample::kIncludeCEntryFrame, true);
+    v8::TickSample sample;
+    sample.Init(isolate(), regs, v8::TickSample::kIncludeCEntryFrame, true);
     profiler_->Insert(&sample);
   }
 
@@ -714,7 +712,7 @@ void Profiler::Disengage() {
   // inserting a fake element in the queue and then wait for
   // the thread to terminate.
   base::NoBarrier_Store(&running_, 0);
-  TickSample sample;
+  v8::TickSample sample;
   // Reset 'paused_' flag, otherwise semaphore may not be signalled.
   resume();
   Insert(&sample);
@@ -725,7 +723,7 @@ void Profiler::Disengage() {
 
 
 void Profiler::Run() {
-  TickSample sample;
+  v8::TickSample sample;
   bool overflow = Remove(&sample);
   while (base::NoBarrier_Load(&running_)) {
     LOG(isolate_, TickEvent(&sample, overflow));
@@ -1367,7 +1365,7 @@ void Logger::RuntimeCallTimerEvent() {
   msg.WriteToLogFile();
 }
 
-void Logger::TickEvent(TickSample* sample, bool overflow) {
+void Logger::TickEvent(v8::TickSample* sample, bool overflow) {
   if (!log_->IsEnabled() || !FLAG_prof_cpp) return;
   if (FLAG_runtime_call_stats) {
     RuntimeCallTimerEvent();