[chromedriver] Separate stuff of chrome from chromedriver.

chrome/test/chromedriver/dom_tracker.cc

-// 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.
-
-#include "chrome/test/chromedriver/dom_tracker.h"
-
-#include <utility>
-
-#include "base/json/json_writer.h"
-#include "base/logging.h"
-#include "base/values.h"
-#include "chrome/test/chromedriver/devtools_client.h"
-#include "chrome/test/chromedriver/status.h"
-
-DomTracker::DomTracker(DevToolsClient* client) : client_(client) {
-  DCHECK(client_);
-  client_->AddListener(this);
-}
-
-DomTracker::~DomTracker() {}
-
-Status DomTracker::GetFrameIdForNode(
-    int node_id, std::string* frame_id) {
-  if (node_to_frame_map_.count(node_id) == 0)
-    return Status(kUnknownError, "element is not a frame");
-  *frame_id = node_to_frame_map_[node_id];
-  return Status(kOk);
-}
-
-Status DomTracker::OnConnected() {
-  node_to_frame_map_.clear();
-  // Fetch the root document node so that Inspector will push DOM node
-  // information to the client.
-  base::DictionaryValue params;
-  return client_->SendCommand("DOM.getDocument", params);
-}
-
-void DomTracker::OnEvent(const std::string& method,
-                         const base::DictionaryValue& params) {
-  if (method == "DOM.setChildNodes") {
-    const base::Value* nodes;
-    if (!params.Get("nodes", &nodes)) {
-      LOG(ERROR) << "DOM.setChildNodes missing 'nodes'";
-      return;
-    }
-    if (!ProcessNodeList(nodes)) {
-      std::string json;
-      base::JSONWriter::Write(nodes, &json);
-      LOG(ERROR) << "DOM.setChildNodes has invalid 'nodes': " << json;
-    }
-  } else if (method == "DOM.documentUpdated") {
-    node_to_frame_map_.clear();
-    base::DictionaryValue params;
-    client_->SendCommand("DOM.getDocument", params);
-  }
-}
-
-bool DomTracker::ProcessNodeList(const base::Value* nodes) {
-  const base::ListValue* nodes_list;
-  if (!nodes->GetAsList(&nodes_list))
-    return false;
-  for (size_t i = 0; i < nodes_list->GetSize(); ++i) {
-    const base::Value* node;
-    if (!nodes_list->Get(i, &node))
-      return false;
-    if (!ProcessNode(node))
-      return false;
-  }
-  return true;
-}
-
-bool DomTracker::ProcessNode(const base::Value* node) {
-  const base::DictionaryValue* dict;
-  if (!node->GetAsDictionary(&dict))
-    return false;
-  int node_id;
-  if (!dict->GetInteger("nodeId", &node_id))
-    return false;
-  std::string frame_id;
-  if (dict->GetString("frameId", &frame_id))
-    node_to_frame_map_.insert(std::make_pair(node_id, frame_id));
-
-  const base::Value* children;
-  if (dict->Get("children", &children))
-    return ProcessNodeList(children);
-  return true;
-}