DevTools: allow reattaching main target live.

chrome/browser/devtools/devtools_embedder_message_dispatcher.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/devtools/devtools_embedder_message_dispatcher.h"
 
 #include "base/bind.h"
 #include "base/values.h"
 
 namespace {
@@ skipping 193 matching lines @@
   d->RegisterHandlerWithCallback("sendJsonRequest",
                                  &Delegate::SendJsonRequest, delegate);
   d->RegisterHandlerWithCallback("getPreferences",
                                  &Delegate::GetPreferences, delegate);
   d->RegisterHandler("setPreference",
                      &Delegate::SetPreference, delegate);
   d->RegisterHandler("removePreference",
                      &Delegate::RemovePreference, delegate);
   d->RegisterHandler("clearPreferences",
                      &Delegate::ClearPreferences, delegate);
+  d->RegisterHandlerWithCallback("reattach",
+                                 &Delegate::Reattach, delegate);
   d->RegisterHandler("readyForTest",
                      &Delegate::ReadyForTest, delegate);
   return d;
 }