Remember thread's task when sampling use it when filtering

runtime/vm/profiler_test.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "platform/assert.h"
 
 #include "vm/dart_api_impl.h"
 #include "vm/dart_api_state.h"
 #include "vm/globals.h"
 #include "vm/profiler.h"
@@ skipping 183 matching lines @@
 }
 
 
 class AllocationFilter : public SampleFilter {
  public:
   AllocationFilter(Isolate* isolate,
                    intptr_t cid,
                    int64_t time_origin_micros = -1,
                    int64_t time_extent_micros = -1)
       : SampleFilter(isolate,
+                     Thread::kMutatorTask,
                      time_origin_micros,
                      time_extent_micros),
         cid_(cid),
         enable_vm_ticks_(false) {
   }
 
   bool FilterSample(Sample* sample) {
     if (!enable_vm_ticks_ &&
         (sample->vm_tag() == VMTag::kVMTagId)) {
       // We don't want to see embedder ticks in the test.
@@ skipping 2087 matching lines @@
 
 static void InsertFakeSample(SampleBuffer* sample_buffer,
                              uword* pc_offsets) {
   ASSERT(sample_buffer != NULL);
   Isolate* isolate = Isolate::Current();
   Sample* sample = sample_buffer->ReserveSample();
   ASSERT(sample != NULL);
   sample->Init(isolate,
                OS::GetCurrentMonotonicMicros(),
                OSThread::Current()->trace_id());
+  sample->set_thread_task(Thread::kMutatorTask);
 
   intptr_t i = 0;
   while (pc_offsets[i] != 0) {
     // When we collect a real stack trace, all PCs collected aside from the
     // executing one (i == 0) are actually return addresses. Return addresses
     // are one byte beyond the call instruction that is executing. The profiler
     // accounts for this and subtracts one from these addresses when querying
     // inline and token position ranges. To be consistent with real stack
     // traces, we add one byte to all PCs except the executing one.
     // See OffsetForPC in profiler_service.cc for more context.
@@ skipping 171 matching lines @@
   EXPECT_SUBSTRING("\"positions\":[\"TempMove\",39]", js.ToCString());
   // Verify exclusive ticks in main.
   EXPECT_SUBSTRING("\"exclusiveTicks\":[1,0]", js.ToCString());
   // Verify inclusive ticks in main.
   EXPECT_SUBSTRING("\"inclusiveTicks\":[1,2]", js.ToCString());
 }
 
 #endif  // !PRODUCT
 
 }  // namespace dart