[inspector] Move SetIdle from CPUProfiler to debug-interface

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index 098e3f9a83e0b168f5072fbb6c9b141bfd893928..769eb2ed239664d4191a3222ab5da6f26808fdaf 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -9642,6 +9642,18 @@ void debug::ResetBlackboxedStateCache(Isolate* v8_isolate,
   }
 }
 
+void debug::SetIdle(Isolate* v8_isolate, bool is_idle) {
+  i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate);
+  v8::StateTag state = isolate->current_vm_state();
+  DCHECK(state == v8::EXTERNAL || state == v8::IDLE);
+  if (isolate->js_entry_sp() != NULL) return;
+  if (is_idle) {
+    isolate->set_current_vm_state(v8::IDLE);
+  } else if (state == v8::IDLE) {
+    isolate->set_current_vm_state(v8::EXTERNAL);
+  }
+}
+
 int debug::EstimatedValueSize(Isolate* v8_isolate, v8::Local<v8::Value> value) {
   i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate);
   ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate);
@@ -10011,14 +10023,7 @@ void CpuProfiler::SetIdle(bool is_idle) {
   i::CpuProfiler* profiler = reinterpret_cast<i::CpuProfiler*>(this);
   i::Isolate* isolate = profiler->isolate();
   if (!isolate->is_profiling()) return;
-  v8::StateTag state = isolate->current_vm_state();
-  DCHECK(state == v8::EXTERNAL || state == v8::IDLE);
-  if (isolate->js_entry_sp() != NULL) return;
-  if (is_idle) {
-    isolate->set_current_vm_state(v8::IDLE);
-  } else if (state == v8::IDLE) {
-    isolate->set_current_vm_state(v8::EXTERNAL);
-  }
+  debug::SetIdle(reinterpret_cast<v8::Isolate*>(isolate), is_idle);
 }