[DevTools] Move inspect from Inspector to Runtime.

content/browser/devtools/protocol/inspector_handler.cc

 // Copyright 2014 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 "content/browser/devtools/protocol/inspector_handler.h"
 
 #include "content/browser/frame_host/render_frame_host_impl.h"
 
 namespace content {
 namespace devtools {
@@ skipping 20 matching lines @@
   client_->TargetCrashed(TargetCrashedParams::Create());
 }
 
 void InspectorHandler::TargetDetached(const std::string& reason) {
   client_->Detached(DetachedParams::Create()->set_reason(reason));
 }
 
 Response InspectorHandler::Enable() {
   if (host_ && !host_->IsRenderFrameLive())
     client_->TargetCrashed(TargetCrashedParams::Create());
-  return Response::FallThrough();
+  return Response::OK();
 }
 
+Response InspectorHandler::Disable() {
+  return Response::OK();
+}
 
 }  // namespace inspector
 }  // namespace devtools
 }  // namespace content