Pass Thread into StackFrameIterator

runtime/vm/stack_frame.cc

Index: runtime/vm/stack_frame.cc
diff --git a/runtime/vm/stack_frame.cc b/runtime/vm/stack_frame.cc
index 4bb0858bee95c0f6f25f71b64efda5a0bcb972c7..3aead8622994494e0b3bc6f74550a36ff19cfcdf 100644
--- a/runtime/vm/stack_frame.cc
+++ b/runtime/vm/stack_frame.cc
@@ -271,7 +271,8 @@ bool StackFrame::IsValid() const {
 
 
 void StackFrameIterator::SetupLastExitFrameData() {
-  uword exit_marker = Thread::Current()->top_exit_frame_info();
+  ASSERT(thread_ != NULL);
+  uword exit_marker = thread_->top_exit_frame_info();
   frames_.fp_ = exit_marker;
 }
 
@@ -294,13 +295,16 @@ static void UnpoisonStack(Isolate* isolate, uword fp) {
 }
 
 
-StackFrameIterator::StackFrameIterator(bool validate, Isolate* isolate)
+StackFrameIterator::StackFrameIterator(bool validate,
+                                       Isolate* isolate,
+                                       Thread* thread)
     : validate_(validate),
       entry_(isolate),
       exit_(isolate),
       frames_(isolate),
       current_frame_(NULL),
-      isolate_(isolate) {
+      isolate_(isolate),
+      thread_(thread) {
   ASSERT((isolate_ == Isolate::Current()) ||
          OS::AllowStackFrameIteratorFromAnotherThread());
   SetupLastExitFrameData();  // Setup data for last exit frame.
@@ -308,13 +312,14 @@ StackFrameIterator::StackFrameIterator(bool validate, Isolate* isolate)
 
 
 StackFrameIterator::StackFrameIterator(uword last_fp, bool validate,
-                                       Isolate* isolate)
+                                       Isolate* isolate, Thread* thread)
     : validate_(validate),
       entry_(isolate),
       exit_(isolate),
       frames_(isolate),
       current_frame_(NULL),
-      isolate_(isolate) {
+      isolate_(isolate),
+      thread_(thread) {
   ASSERT((isolate_ == Isolate::Current()) ||
          OS::AllowStackFrameIteratorFromAnotherThread());
   frames_.fp_ = last_fp;
@@ -324,13 +329,15 @@ StackFrameIterator::StackFrameIterator(uword last_fp, bool validate,
 
 
 StackFrameIterator::StackFrameIterator(uword fp, uword sp, uword pc,
-                                       bool validate, Isolate* isolate)
+                                       bool validate, Isolate* isolate,
+                                       Thread* thread)
     : validate_(validate),
       entry_(isolate),
       exit_(isolate),
       frames_(isolate),
       current_frame_(NULL),
-      isolate_(isolate) {
+      isolate_(isolate),
+      thread_(thread) {
   ASSERT((isolate_ == Isolate::Current()) ||
          OS::AllowStackFrameIteratorFromAnotherThread());
   frames_.fp_ = fp;