Update ash to use new devtools base agent

ash/common/devtools/devtools_dom_agent.cc

Index: ash/common/devtools/devtools_dom_agent.cc
diff --git a/ash/common/devtools/devtools_dom_agent.cc b/ash/common/devtools/devtools_dom_agent.cc
deleted file mode 100644
index 8673b77fbd574a8c815ef2ee948f45b05719de92..0000000000000000000000000000000000000000
--- a/ash/common/devtools/devtools_dom_agent.cc
+++ /dev/null
@@ -1,110 +0,0 @@
-// Copyright 2016 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 "ash/common/devtools/devtools_dom_agent.h"
-
-#include "ash/common/wm_shell.h"
-#include "ash/common/wm_window.h"
-#include "components/ui_devtools/DOM.h"
-#include "components/ui_devtools/devtools_server.h"
-#include "ui/views/view.h"
-#include "ui/views/widget/widget.h"
-
-namespace ash {
-namespace devtools {
-
-namespace {
-using namespace ui::devtools::protocol;
-
-std::unique_ptr<DOM::Node> BuildNode(
-    const std::string& name,
-    std::unique_ptr<Array<std::string>> attributes,
-    std::unique_ptr<Array<DOM::Node>> children) {
-  static DOM::NodeId node_ids = 0;
-  constexpr int kDomElementNodeType = 1;
-  return DOM::Node::create()
-      .setNodeId(node_ids++)
-      .setNodeName(name)
-      .setNodeType(kDomElementNodeType)
-      .setAttributes(std::move(attributes))
-      .setChildNodeCount(children->length())
-      .setChildren(std::move(children))
-      .build();
-}
-
-std::unique_ptr<Array<std::string>> GetAttributes(const ash::WmWindow* window) {
-  std::unique_ptr<Array<std::string>> attributes = Array<std::string>::create();
-  attributes->addItem("name");
-  attributes->addItem(window->GetName());
-  attributes->addItem("active");
-  attributes->addItem(window->IsActive() ? "true" : "false");
-  return attributes;
-}
-
-std::unique_ptr<Array<std::string>> GetAttributes(const views::Widget* widget) {
-  std::unique_ptr<Array<std::string>> attributes = Array<std::string>::create();
-  attributes->addItem("name");
-  attributes->addItem(widget->GetName());
-  attributes->addItem("active");
-  attributes->addItem(widget->IsActive() ? "true" : "false");
-  return attributes;
-}
-
-std::unique_ptr<Array<std::string>> GetAttributes(const views::View* view) {
-  std::unique_ptr<Array<std::string>> attributes = Array<std::string>::create();
-  attributes->addItem("name");
-  attributes->addItem(view->GetClassName());
-  return attributes;
-}
-
-std::unique_ptr<DOM::Node> BuildTreeForView(views::View* view) {
-  std::unique_ptr<Array<DOM::Node>> children = Array<DOM::Node>::create();
-  for (int i = 0, count = view->child_count(); i < count; i++) {
-    children->addItem(BuildTreeForView(view->child_at(i)));
-  }
-  return BuildNode("View", GetAttributes(view), std::move(children));
-}
-
-std::unique_ptr<DOM::Node> BuildTreeForRootWidget(views::Widget* widget) {
-  std::unique_ptr<Array<DOM::Node>> children = Array<DOM::Node>::create();
-  children->addItem(BuildTreeForView(widget->GetRootView()));
-  return BuildNode("Widget", GetAttributes(widget), std::move(children));
-}
-
-std::unique_ptr<DOM::Node> BuildTreeForWindow(ash::WmWindow* window) {
-  std::unique_ptr<Array<DOM::Node>> children = Array<DOM::Node>::create();
-  for (ash::WmWindow* child : window->GetChildren()) {
-    children->addItem(BuildTreeForWindow(child));
-    views::Widget* widget = child->GetInternalWidget();
-    if (widget)
-      children->addItem(BuildTreeForRootWidget(widget));
-  }
-  return BuildNode("Window", GetAttributes(window), std::move(children));
-}
-
-}  // namespace
-
-AshDevToolsDOMAgent::AshDevToolsDOMAgent(ash::WmShell* shell) : shell_(shell) {
-  DCHECK(shell_);
-}
-
-AshDevToolsDOMAgent::~AshDevToolsDOMAgent() {}
-
-std::unique_ptr<ui::devtools::protocol::DOM::Node>
-AshDevToolsDOMAgent::BuildInitialTree() {
-  std::unique_ptr<Array<DOM::Node>> children = Array<DOM::Node>::create();
-  for (ash::WmWindow* window : shell_->GetAllRootWindows()) {
-    children->addItem(BuildTreeForWindow(window));
-  }
-  return BuildNode("root", nullptr, std::move(children));
-}
-
-void AshDevToolsDOMAgent::getDocument(
-    ui::devtools::protocol::ErrorString* error,
-    std::unique_ptr<ui::devtools::protocol::DOM::Node>* out_root) {
-  *out_root = BuildInitialTree();
-}
-
-}  // namespace devtools
-}  // namespace ash