- Remove the legacy debug protocol.

runtime/vm/debugger.h

 // Copyright (c) 2012, 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 VM_DEBUGGER_H_
 #define VM_DEBUGGER_H_
 
 #include "include/dart_tools_api.h"
 
 #include "vm/object.h"
@@ skipping 566 matching lines @@
   intptr_t limitBreakpointId() { return next_id_; }
 
  private:
   enum ResumeAction {
     kContinue,
     kStepOver,
     kStepOut,
     kSingleStep
   };
 
-  static bool HasEventHandler();
+  static bool HasAnyEventHandler();
+  static bool HasDebugEventHandler();
   void InvokeEventHandler(DebuggerEvent* event);
 
   void FindCompiledFunctions(const Script& script,
                              intptr_t start_pos,
                              intptr_t end_pos,
                              GrowableObjectArray* function_list);
   RawFunction* FindBestFit(const Script& script, intptr_t token_pos);
   RawFunction* FindInnermostClosure(const Function& function,
                                     intptr_t token_pos);
   intptr_t ResolveBreakpointPos(const Function& func,
@@ skipping 97 matching lines @@
 
   friend class Isolate;
   friend class BreakpointLocation;
   DISALLOW_COPY_AND_ASSIGN(Debugger);
 };
 
 
 }  // namespace dart
 
 #endif  // VM_DEBUGGER_H_