Revert r43217, r43215, r43208, r43207, and r43202.

runtime/vm/dart_api_impl.cc

Index: runtime/vm/dart_api_impl.cc
diff --git a/runtime/vm/dart_api_impl.cc b/runtime/vm/dart_api_impl.cc
index 0ba4e7f52dbce45de59b2106ffd3c4966834e046..3bf04578c6a14152fa87ffab5c9693e977adb4f1 100644
--- a/runtime/vm/dart_api_impl.cc
+++ b/runtime/vm/dart_api_impl.cc
@@ -1204,10 +1204,12 @@ DART_EXPORT bool Dart_Initialize(
     Dart_FileReadCallback file_read,
     Dart_FileWriteCallback file_write,
     Dart_FileCloseCallback file_close,
-    Dart_EntropySource entropy_source) {
+    Dart_EntropySource entropy_source,
+    Dart_ServiceIsolateCreateCalback service_create) {
   const char* err_msg = Dart::InitOnce(create, interrupt, unhandled, shutdown,
                                        file_open, file_read, file_write,
-                                       file_close, entropy_source);
+                                       file_close, entropy_source,
+                                       service_create);
   if (err_msg != NULL) {
     OS::PrintErr("Dart_Initialize: %s\n", err_msg);
     return false;
@@ -1250,10 +1252,6 @@ static char* BuildIsolateName(const char* script_uri,
     }
   }
 
-  if (Service::IsServiceIsolateName(script_uri)) {
-    return strdup(script_uri);
-  }
-
   // Skip past any slashes and backslashes in the script uri.
   const char* last_slash = strrchr(script_uri, '/');
   if (last_slash != NULL) {
@@ -1523,7 +1521,6 @@ DART_EXPORT Dart_Handle Dart_RunLoop() {
     return error;
   }
   if (FLAG_print_class_table) {
-    HANDLESCOPE(isolate);
     isolate->class_table()->Print();
   }
   return Api::Success();
@@ -5409,14 +5406,13 @@ DART_EXPORT Dart_Handle Dart_SetPeer(Dart_Handle object, void* peer) {
 
 // --- Service support ---
 
-DART_EXPORT bool Dart_IsServiceIsolate(Dart_Isolate isolate) {
-  Isolate* iso = reinterpret_cast<Isolate*>(isolate);
-  return Service::IsServiceIsolate(iso);
+DART_EXPORT Dart_Isolate Dart_GetServiceIsolate(void* callback_data) {
+  return Api::CastIsolate(Service::GetServiceIsolate(callback_data));
 }
 
 
-DART_EXPORT Dart_Port Dart_ServiceWaitForLoadPort() {
-  return Service::WaitForLoadPort();
+DART_EXPORT bool Dart_IsServiceRunning() {
+  return Service::IsRunning();
 }