Remove DebuggerAgent.

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index 7f1276dee8e634fb9fafc6ef093596f9fc18e389..a9f39a597d61814f92ddcfdeadbc3e907a799a83 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -6824,22 +6824,11 @@ void Debug::SendCommand(Isolate* isolate,
                         int length,
                         ClientData* client_data) {
   i::Isolate* internal_isolate = reinterpret_cast<i::Isolate*>(isolate);
-  internal_isolate->debugger()->ProcessCommand(
+  internal_isolate->debugger()->EnqueueCommandMessage(
       i::Vector<const uint16_t>(command, length), client_data);
 }
 
 
-void Debug::SetDebugMessageDispatchHandler(
-    DebugMessageDispatchHandler handler, bool provide_locker) {
-  i::Isolate* isolate = i::Isolate::Current();
-  EnsureInitializedForIsolate(isolate,
-                              "v8::Debug::SetDebugMessageDispatchHandler");
-  ENTER_V8(isolate);
-  isolate->debugger()->SetDebugMessageDispatchHandler(
-      handler, provide_locker);
-}
-
-
 Local<Value> Debug::Call(v8::Handle<v8::Function> fun,
                          v8::Handle<v8::Value> data) {
   i::Isolate* isolate = i::Isolate::Current();
@@ -6891,17 +6880,6 @@ Local<Value> Debug::GetMirror(v8::Handle<v8::Value> obj) {
 }
 
 
-bool Debug::EnableAgent(const char* name, int port, bool wait_for_connection) {
-  return i::Isolate::Current()->debugger()->StartAgent(name, port,
-                                                       wait_for_connection);
-}
-
-
-void Debug::DisableAgent() {
-  return i::Isolate::Current()->debugger()->StopAgent();
-}
-
-
 void Debug::ProcessDebugMessages() {
   i::Execution::ProcessDebugMessages(i::Isolate::Current(), true);
 }