[chromedriver] Separate stuff of chrome from chromedriver.

chrome/test/chromedriver/dom_tracker.h

-// Copyright (c) 2012 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.
-
-#ifndef CHROME_TEST_CHROMEDRIVER_DOM_TRACKER_H_
-#define CHROME_TEST_CHROMEDRIVER_DOM_TRACKER_H_
-
-#include <map>
-#include <string>
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "chrome/test/chromedriver/devtools_event_listener.h"
-
-namespace base {
-class DictionaryValue;
-class Value;
-}
-
-class DevToolsClient;
-class Status;
-
-// Tracks the state of the DOM and execution context creation.
-class DomTracker : public DevToolsEventListener {
- public:
-  explicit DomTracker(DevToolsClient* client);
-  virtual ~DomTracker();
-
-  Status GetFrameIdForNode(int node_id, std::string* frame_id);
-
-  // Overridden from DevToolsEventListener:
-  virtual Status OnConnected() OVERRIDE;
-  virtual void OnEvent(const std::string& method,
-                       const base::DictionaryValue& params) OVERRIDE;
-
- private:
-  DevToolsClient* client_;
-  bool ProcessNodeList(const base::Value* nodes);
-  bool ProcessNode(const base::Value* node);
-
-  std::map<int, std::string> node_to_frame_map_;
-
-  DISALLOW_COPY_AND_ASSIGN(DomTracker);
-};
-
-#endif  // CHROME_TEST_CHROMEDRIVER_DOM_TRACKER_H_