Revert of DevTools: Protocol handler generator for content

content/browser/devtools/protocol/tracing_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/tracing_handler.h"
-
-namespace content {
-namespace devtools {
-namespace tracing {
-
-typedef DevToolsProtocolClient::Response Response;
-
-TracingHandler::TracingHandler() {
-}
-
-TracingHandler::~TracingHandler() {
-}
-
-void TracingHandler::SetClient(scoped_ptr<Client> client) {
-  client_.swap(client);
-}
-
-Response TracingHandler::Start(const std::string& categories,
-                               const std::string& options,
-                               const double* buffer_usage_reporting_interval) {
-  return Response::FallThrough();
-}
-
-Response TracingHandler::End() {
-  return Response::FallThrough();
-}
-
-scoped_refptr<DevToolsProtocol::Response> TracingHandler::GetCategories(
-    scoped_refptr<DevToolsProtocol::Command> command) {
-  return NULL;
-}
-
-}  // namespace tracing
-}  // namespace devtools
-}  // namespace content