- Remove the legacy debug protocol.

runtime/vm/dart_api_impl.cc

 // 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.
 
 #include "include/dart_api.h"
 #include "include/dart_mirrors_api.h"
 #include "include/dart_native_api.h"
 
 #include "platform/assert.h"
 #include "vm/class_finalizer.h"
@@ skipping 1106 matching lines @@
     Dart_IsolateShutdownCallback shutdown,
     Dart_FileOpenCallback file_open,
     Dart_FileReadCallback file_read,
     Dart_FileWriteCallback file_write,
     Dart_FileCloseCallback file_close,
     Dart_EntropySource entropy_source,
     Dart_GetVMServiceAssetsArchive get_service_assets) {
   if ((instructions_snapshot != NULL) && !FLAG_precompilation) {
     return strdup("Flag --precompilation was not specified.");
   }
+  if (interrupt != NULL) {
+    return strdup("Dart_Initialize: "
+                  "Setting of interrupt callback is not supported.");
+  }
+  if (unhandled != NULL) {
+    return strdup("Dart_Initialize: "
+                  "Setting of unhandled exception callback is not supported.");
+  }
   const char* err_msg = Dart::InitOnce(vm_isolate_snapshot,
                                        instructions_snapshot,
-                                       create, interrupt, unhandled, shutdown,
+                                       create, shutdown,
                                        file_open, file_read, file_write,
                                        file_close, entropy_source,
                                        get_service_assets);
   if (err_msg != NULL) {
     return strdup(err_msg);
   }
   return NULL;
 }
 
 
@@ skipping 4779 matching lines @@
                                    ApiReallocate);
   writer.WriteFullSnapshot();
   *vm_isolate_snapshot_size = writer.VmIsolateSnapshotSize();
   *isolate_snapshot_size = writer.IsolateSnapshotSize();
   *instructions_snapshot_size = writer.InstructionsSnapshotSize();
 
   return Api::Success();
 }
 
 }  // namespace dart