Sampling heap profiler: Force Full GC before retrieving the profile.

src/profiler/heap-profiler.cc

Index: src/profiler/heap-profiler.cc
diff --git a/src/profiler/heap-profiler.cc b/src/profiler/heap-profiler.cc
index 1305cae66ea1ad097c1a726705ebdbb604a556cf..e048faece5401e7deacb41bf09ee2c73cefc0271 100644
--- a/src/profiler/heap-profiler.cc
+++ b/src/profiler/heap-profiler.cc
@@ -84,14 +84,14 @@ HeapSnapshot* HeapProfiler::TakeSnapshot(
   return result;
 }
 
-
-bool HeapProfiler::StartSamplingHeapProfiler(uint64_t sample_interval,
-                                             int stack_depth) {
+bool HeapProfiler::StartSamplingHeapProfiler(
+    uint64_t sample_interval, int stack_depth,
+    v8::HeapProfiler::SamplingFlags flags) {
   if (sampling_heap_profiler_.get()) {
     return false;
   }
   sampling_heap_profiler_.Reset(new SamplingHeapProfiler(
-      heap(), names_.get(), sample_interval, stack_depth));
+      heap(), names_.get(), sample_interval, stack_depth, flags));
   return true;
 }