Initial GetSample implementation.

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index 7c484de53ee1e537a8abeefdce1e0cab69e4952e..a0ddd6c635b949f73e01388e317fb0e92d9dd4db 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -11,6 +11,7 @@
 #include <cmath>  // For isnan.
 #include "include/v8-debug.h"
 #include "include/v8-profiler.h"
+#include "include/v8-sampler.h"
 #include "include/v8-testing.h"
 #include "src/assert-scope.h"
 #include "src/base/platform/platform.h"
@@ -7425,6 +7426,23 @@ void HeapProfiler::SetRetainedObjectInfo(UniqueId id,
   reinterpret_cast<i::HeapProfiler*>(this)->SetRetainedObjectInfo(id, info);
 }
 
+void Sampler::GetSample(Isolate* isolate,
+                        unsigned max_frame_count,
+                        Sample* sample) {
+  i::Isolate* isolate_ = reinterpret_cast<i::Isolate*>(isolate);
+
+  i::CpuProfiler* profiler_ = isolate_->cpu_profiler();
+  if (profiler_ == NULL) return;
+
+  i::ProfilerEventsProcessor* processor_ = profiler_->processor();
+  if (processor_ == NULL) return;
+
+  i::Sampler* sampler_ = processor_->sampler();
+  if (sampler_ == NULL) return;
+
+  sampler_->GetSample(reinterpret_cast<i::TickSample*>(sample),
+                      max_frame_count);
+}
 
 v8::Testing::StressType internal::Testing::stress_type_ =
     v8::Testing::kStressTypeOpt;