Refactoring: Moving the SafeJsonParser to its own component.

chrome/browser/safe_json_parser.cc

Index: chrome/browser/safe_json_parser.cc
diff --git a/chrome/browser/safe_json_parser.cc b/chrome/browser/safe_json_parser.cc
deleted file mode 100644
index 232fdd43daed61c90439de21ebb0189410a61660..0000000000000000000000000000000000000000
--- a/chrome/browser/safe_json_parser.cc
+++ /dev/null
@@ -1,87 +0,0 @@
-// 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/safe_json_parser.h"
-
-#include "chrome/common/chrome_utility_messages.h"
-#include "chrome/grit/generated_resources.h"
-#include "content/public/browser/browser_thread.h"
-#include "content/public/browser/utility_process_host.h"
-#include "ui/base/l10n/l10n_util.h"
-
-using content::BrowserThread;
-using content::UtilityProcessHost;
-
-SafeJsonParser::SafeJsonParser(const std::string& unsafe_json,
-                               const SuccessCallback& success_callback,
-                               const ErrorCallback& error_callback)
-    : unsafe_json_(unsafe_json),
-      success_callback_(success_callback),
-      error_callback_(error_callback) {}
-
-void SafeJsonParser::Start() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  BrowserThread::PostTask(
-      BrowserThread::IO,
-      FROM_HERE,
-      base::Bind(&SafeJsonParser::StartWorkOnIOThread, this));
-}
-
-SafeJsonParser::~SafeJsonParser() {}
-
-void SafeJsonParser::StartWorkOnIOThread() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-  UtilityProcessHost* host =
-      UtilityProcessHost::Create(this, base::MessageLoopProxy::current().get());
-  host->SetName(l10n_util::GetStringUTF16(
-      IDS_UTILITY_PROCESS_JSON_PARSER_NAME));
-  host->Send(new ChromeUtilityMsg_ParseJSON(unsafe_json_));
-}
-
-void SafeJsonParser::OnJSONParseSucceeded(const base::ListValue& wrapper) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-  const base::Value* value = NULL;
-  CHECK(wrapper.Get(0, &value));
-
-  parsed_json_.reset(value->DeepCopy());
-  ReportResults();
-}
-
-void SafeJsonParser::OnJSONParseFailed(const std::string& error_message) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-  error_ = error_message;
-  ReportResults();
-}
-
-void SafeJsonParser::ReportResults() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-
-  BrowserThread::PostTask(
-      BrowserThread::UI,
-      FROM_HERE,
-      base::Bind(&SafeJsonParser::ReportResultOnUIThread, this));
-}
-
-void SafeJsonParser::ReportResultOnUIThread() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  if (error_.empty() && parsed_json_) {
-    if (!success_callback_.is_null())
-      success_callback_.Run(parsed_json_.Pass());
-  } else {
-    if (!error_callback_.is_null())
-      error_callback_.Run(error_);
-  }
-}
-
-bool SafeJsonParser::OnMessageReceived(const IPC::Message& message) {
-  bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP(SafeJsonParser, message)
-    IPC_MESSAGE_HANDLER(ChromeUtilityHostMsg_ParseJSON_Succeeded,
-                        OnJSONParseSucceeded)
-    IPC_MESSAGE_HANDLER(ChromeUtilityHostMsg_ParseJSON_Failed,
-                        OnJSONParseFailed)
-    IPC_MESSAGE_UNHANDLED(handled = false)
-  IPC_END_MESSAGE_MAP()
-  return handled;
-}