Getting rid of Isolate::current_zone() usage. Pass thread instead of isolate where it makes sense.

runtime/vm/profiler_service.h

Index: runtime/vm/profiler_service.h
diff --git a/runtime/vm/profiler_service.h b/runtime/vm/profiler_service.h
index 621db01286e01b11f08c92ee015e9650b2a47e6e..83df5e7bbbfce1d1120918930cdcdd205f0e2ac0 100644
--- a/runtime/vm/profiler_service.h
+++ b/runtime/vm/profiler_service.h
@@ -300,7 +300,8 @@ class Profile : public ValueObject {
   explicit Profile(Isolate* isolate);
 
   // Build a filtered model using |filter| with the specified |tag_order|.
-  void Build(SampleFilter* filter, TagOrder tag_order, intptr_t extra_tags = 0);
+  void Build(Thread* thread,
+             SampleFilter* filter, TagOrder tag_order, intptr_t extra_tags = 0);
 
   // After building:
   int64_t min_time() const { return min_time_; }