Remove legacy restart code

runtime/vm/service.h

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef RUNTIME_VM_SERVICE_H_
 #define RUNTIME_VM_SERVICE_H_
 
 #include "include/dart_tools_api.h"
 
 #include "vm/allocation.h"
 #include "vm/object_graph.h"
 #include "vm/object_id_ring.h"
 #include "vm/os_thread.h"
 
 namespace dart {
 
 #define SERVICE_PROTOCOL_MAJOR_VERSION 3
 #define SERVICE_PROTOCOL_MINOR_VERSION 5
 
 class Array;
 class EmbedderServiceHandler;
 class Error;
 class GCEvent;
 class GrowableObjectArray;
 class Instance;
 class Isolate;
 class JSONStream;
 class Object;
 class RawInstance;
+class RawError;
 class ServiceEvent;
 class String;
 
 class ServiceIdZone {
  public:
   ServiceIdZone();
   virtual ~ServiceIdZone();
 
   // Returned string will be zone allocated.
   virtual char* GetServiceId(const Object& obj) = 0;
@@ skipping 34 matching lines @@
 
  private:
   const char* id_;
   bool enabled_;
 };
 
 
 class Service : public AllStatic {
  public:
   // Handles a message which is not directed to an isolate.
-  static void HandleRootMessage(const Array& message);
+  static RawError* HandleRootMessage(const Array& message);
 
   // Handles a message which is not directed to an isolate and also
   // expects the parameter keys and values to be actual dart objects.
-  static void HandleObjectRootMessage(const Array& message);
+  static RawError* HandleObjectRootMessage(const Array& message);
 
   // Handles a message which is directed to a particular isolate.
-  static void HandleIsolateMessage(Isolate* isolate, const Array& message);
+  static RawError* HandleIsolateMessage(Isolate* isolate, const Array& message);
 
   static void HandleEvent(ServiceEvent* event);
 
   static void RegisterIsolateEmbedderCallback(
       const char* name,
       Dart_ServiceRequestCallback callback,
       void* user_data);
 
   static void RegisterRootEmbedderCallback(const char* name,
                                            Dart_ServiceRequestCallback callback,
@@ skipping 60 matching lines @@
   }
   static Dart_ServiceStreamCancelCallback stream_cancel_callback() {
     return stream_cancel_callback_;
   }
 
   static void PrintJSONForVM(JSONStream* js, bool ref);
 
   static void CheckForPause(Isolate* isolate, JSONStream* stream);
 
  private:
-  static void InvokeMethod(Isolate* isolate,
-                           const Array& message,
-                           bool parameters_are_dart_objects = false);
+  static RawError* InvokeMethod(Isolate* isolate,
+                                const Array& message,
+                                bool parameters_are_dart_objects = false);
 
   static void EmbedderHandleMessage(EmbedderServiceHandler* handler,
                                     JSONStream* js);
 
   static EmbedderServiceHandler* FindIsolateEmbedderHandler(const char* name);
   static EmbedderServiceHandler* FindRootEmbedderHandler(const char* name);
   static void ScheduleExtensionHandler(const Instance& handler,
                                        const String& method_name,
                                        const Array& parameter_keys,
                                        const Array& parameter_values,
@@ skipping 11 matching lines @@
                                 const char* metadata,
                                 intptr_t metadata_size,
                                 const uint8_t* data,
                                 intptr_t data_size);
 
   static void PostEvent(Isolate* isolate,
                         const char* stream_id,
                         const char* kind,
                         JSONStream* event);
 
-  static void MaybePause(Isolate* isolate);
+  static RawError* MaybePause(Isolate* isolate, const Error& error);
 
   static EmbedderServiceHandler* isolate_service_handler_head_;
   static EmbedderServiceHandler* root_service_handler_head_;
   static Dart_ServiceStreamListenCallback stream_listen_callback_;
   static Dart_ServiceStreamCancelCallback stream_cancel_callback_;
   static Dart_GetVMServiceAssetsArchive get_service_assets_callback_;
 
   static bool needs_isolate_events_;
   static bool needs_debug_events_;
   static bool needs_gc_events_;
   static bool needs_echo_events_;
   static bool needs_graph_events_;
 };
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_SERVICE_H_