Switch profiler from isolates to threads

runtime/vm/isolate.h

Index: runtime/vm/isolate.h
diff --git a/runtime/vm/isolate.h b/runtime/vm/isolate.h
index a88569aaa49f49f725e1aa44e18036c12cee729e..36d4b9c465b1ab229b72a89dd0993ef37dd7f6a6 100644
--- a/runtime/vm/isolate.h
+++ b/runtime/vm/isolate.h
@@ -154,6 +154,10 @@ class Isolate : public BaseIsolate {
   bool MutatorThreadIsCurrentThread() {
     return mutator_thread_ == Thread::Current();
   }
+  bool IsMutatorThread(Thread* thread) {
+    ASSERT(thread != NULL);
+    return mutator_thread_ == thread;
+  }

[siva, 2015/10/26 23:45:26]

Both these functions
  MutatorThreadIsCurrentThread
  IsMutatorThread
should be removed from here and we should have a function in Thread
  IsMutatorThread

(I have submitted a cl that cleans up MutatorThreadIsCurrentThread() and added a
IsMutatorThread method in the thread).

[Cutch, 2015/10/27 22:36:24]

I've switched to using thread->IsMutatorThread() and removed 'IsMutatorThread'
from my CL.

 
   const char* name() const { return name_; }
   const char* debugger_name() const { return debugger_name_; }
@@ -327,6 +331,10 @@ class Isolate : public BaseIsolate {
 
   Mutex* mutex() const { return mutex_; }
 
+  bool HasDebugger() const {
+    return debugger_ != NULL;
+  }
+
   Debugger* debugger() const {
     ASSERT(debugger_ != NULL);
     return debugger_;
@@ -570,27 +578,12 @@ class Isolate : public BaseIsolate {
     return defer_finalization_count_ == 0;
   }
 
-  Mutex* profiler_data_mutex() {
-    return &profiler_data_mutex_;
-  }
-
-  void set_profiler_data(IsolateProfilerData* profiler_data) {
-    profiler_data_ = profiler_data;
-  }
-
-  IsolateProfilerData* profiler_data() const {
-    return profiler_data_;
-  }
-
   void PrintJSON(JSONStream* stream, bool ref = true);
 
   CompilerStats* compiler_stats() {
     return compiler_stats_;
   }
 
-  // Returns the number of sampled threads.
-  intptr_t ProfileInterrupt();
-
   VMTagCounters* vm_tag_counters() {
     return &vm_tag_counters_;
   }
@@ -813,9 +806,6 @@ class Isolate : public BaseIsolate {
   // Trace buffer support.
   TraceBuffer* trace_buffer_;
 
-  IsolateProfilerData* profiler_data_;
-  Mutex profiler_data_mutex_;
-
   VMTagCounters vm_tag_counters_;
   RawGrowableObjectArray* tag_table_;