[DevTools] Move IO and Tracing to new generator.

content/browser/devtools/worker_devtools_agent_host.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/worker_devtools_agent_host.h"
 
 #include "base/guid.h"
+#include "base/json/json_reader.h"
 #include "content/browser/devtools/devtools_protocol_handler.h"
 #include "content/browser/devtools/devtools_session.h"
 #include "content/browser/devtools/protocol/schema_handler.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_process_host.h"
 
 namespace content {
 
 BrowserContext* WorkerDevToolsAgentHost::GetBrowserContext() {
   RenderProcessHost* rph = RenderProcessHost::FromID(worker_id_.first);
@@ skipping 22 matching lines @@
   } else if (state_ == WORKER_PAUSED_FOR_REATTACH) {
     state_ = WORKER_UNINSPECTED;
   }
 }
 
 bool WorkerDevToolsAgentHost::DispatchProtocolMessage(
     const std::string& message) {
   if (state_ != WORKER_INSPECTED)
     return true;
 
+  std::unique_ptr<base::Value> value = base::JSONReader::Read(message);
   int call_id;
   std::string method;
-  if (protocol_handler_->HandleOptionalMessage(session()->session_id(), message,
-                                               &call_id, &method))
+  if (protocol_handler_->HandleOptionalMessage(
+          session()->session_id(), std::move(value), &call_id, &method)) {
     return true;
+  }
 
   if (RenderProcessHost* host = RenderProcessHost::FromID(worker_id_.first)) {
     host->Send(new DevToolsAgentMsg_DispatchOnInspectorBackend(
         worker_id_.second, session()->session_id(), call_id, method, message));
   }
   return true;
 }
 
 bool WorkerDevToolsAgentHost::OnMessageReceived(
     const IPC::Message& msg) {
@@ skipping 90 matching lines @@
 
 void WorkerDevToolsAgentHost::OnDispatchOnInspectorFrontend(
     const DevToolsMessageChunk& message) {
   if (!IsAttached())
     return;
 
   chunk_processor_.ProcessChunkedMessageFromAgent(message);
 }
 
 }  // namespace content