Move DevTools out of ash and turn it to a component.

ash/devtools/ash_devtools_css_agent.cc

Index: ash/devtools/ash_devtools_css_agent.cc
diff --git a/ash/devtools/ash_devtools_css_agent.cc b/ash/devtools/ash_devtools_css_agent.cc
deleted file mode 100644
index 90c2ed2d37a1a38a95f69655c94e7f45ceff8d74..0000000000000000000000000000000000000000
--- a/ash/devtools/ash_devtools_css_agent.cc
+++ /dev/null
@@ -1,210 +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/devtools/ash_devtools_css_agent.h"
-
-#include "ash/devtools/ui_element.h"
-#include "base/strings/string_split.h"
-#include "base/strings/string_util.h"
-#include "ui/aura/window.h"
-
-namespace ash {
-namespace devtools {
-namespace {
-
-using namespace ui::devtools::protocol;
-
-const char kHeight[] = "height";
-const char kWidth[] = "width";
-const char kX[] = "x";
-const char kY[] = "y";
-const char kVisibility[] = "visibility";
-
-std::unique_ptr<CSS::SourceRange> BuildDefaultSourceRange() {
-  // These tell the frontend where in the stylesheet a certain style
-  // is located. Since we don't have stylesheets, this is all 0.
-  // We need this because CSS fields are not editable unless
-  // the range is provided.
-  return CSS::SourceRange::create()
-      .setStartLine(0)
-      .setEndLine(0)
-      .setStartColumn(0)
-      .setEndColumn(0)
-      .build();
-}
-
-std::unique_ptr<CSS::CSSProperty> BuildCSSProperty(const std::string& name,
-                                                   int value) {
-  return CSS::CSSProperty::create()
-      .setRange(BuildDefaultSourceRange())
-      .setName(name)
-      .setValue(base::IntToString(value))
-      .build();
-}
-
-std::unique_ptr<Array<CSS::CSSProperty>> BuildCSSPropertyArray(
-    const gfx::Rect& bounds,
-    const bool visible) {
-  auto cssProperties = Array<CSS::CSSProperty>::create();
-  cssProperties->addItem(BuildCSSProperty(kHeight, bounds.height()));
-  cssProperties->addItem(BuildCSSProperty(kWidth, bounds.width()));
-  cssProperties->addItem(BuildCSSProperty(kX, bounds.x()));
-  cssProperties->addItem(BuildCSSProperty(kY, bounds.y()));
-  cssProperties->addItem(BuildCSSProperty(kVisibility, visible));
-  return cssProperties;
-}
-
-std::unique_ptr<CSS::CSSStyle> BuildCSSStyle(int node_id,
-                                             const gfx::Rect& bounds,
-                                             bool visible) {
-  return CSS::CSSStyle::create()
-      .setRange(BuildDefaultSourceRange())
-      .setStyleSheetId(base::IntToString(node_id))
-      .setCssProperties(BuildCSSPropertyArray(bounds, visible))
-      .setShorthandEntries(Array<std::string>::create())
-      .build();
-}
-
-ui::devtools::protocol::Response NodeNotFoundError(int node_id) {
-  return ui::devtools::protocol::Response::Error(
-      "Node with id=" + std::to_string(node_id) + " not found");
-}
-
-Response ParseProperties(const std::string& style_text,
-                         gfx::Rect* bounds,
-                         bool* visible) {
-  std::vector<std::string> tokens = base::SplitString(
-      style_text, ":;", base::TRIM_WHITESPACE, base::SPLIT_WANT_NONEMPTY);
-  for (size_t i = 0; i < tokens.size() - 1; i += 2) {
-    const std::string& property = tokens.at(i);
-    int value;
-    if (!base::StringToInt(tokens.at(i + 1), &value))
-      return Response::Error("Unable to parse value for property=" + property);
-
-    if (property == kHeight)
-      bounds->set_height(std::max(0, value));
-    else if (property == kWidth)
-      bounds->set_width(std::max(0, value));
-    else if (property == kX)
-      bounds->set_x(value);
-    else if (property == kY)
-      bounds->set_y(value);
-    else if (property == kVisibility)
-      *visible = std::max(0, value) == 1;
-    else
-      return Response::Error("Unsupported property=" + property);
-  }
-  return Response::OK();
-}
-
-}  // namespace
-
-AshDevToolsCSSAgent::AshDevToolsCSSAgent(AshDevToolsDOMAgent* dom_agent)
-    : dom_agent_(dom_agent) {
-  DCHECK(dom_agent_);
-}
-
-AshDevToolsCSSAgent::~AshDevToolsCSSAgent() {
-  disable();
-}
-
-ui::devtools::protocol::Response AshDevToolsCSSAgent::enable() {
-  dom_agent_->AddObserver(this);
-  return ui::devtools::protocol::Response::OK();
-}
-
-ui::devtools::protocol::Response AshDevToolsCSSAgent::disable() {
-  dom_agent_->RemoveObserver(this);
-  return ui::devtools::protocol::Response::OK();
-}
-
-ui::devtools::protocol::Response AshDevToolsCSSAgent::getMatchedStylesForNode(
-    int node_id,
-    ui::devtools::protocol::Maybe<ui::devtools::protocol::CSS::CSSStyle>*
-        inline_style) {
-  *inline_style = GetStylesForNode(node_id);
-  if (!inline_style)
-    return NodeNotFoundError(node_id);
-  return ui::devtools::protocol::Response::OK();
-}
-
-ui::devtools::protocol::Response AshDevToolsCSSAgent::setStyleTexts(
-    std::unique_ptr<ui::devtools::protocol::Array<
-        ui::devtools::protocol::CSS::StyleDeclarationEdit>> edits,
-    std::unique_ptr<
-        ui::devtools::protocol::Array<ui::devtools::protocol::CSS::CSSStyle>>*
-        result) {
-  std::unique_ptr<
-      ui::devtools::protocol::Array<ui::devtools::protocol::CSS::CSSStyle>>
-      updated_styles = ui::devtools::protocol::Array<
-          ui::devtools::protocol::CSS::CSSStyle>::create();
-  for (size_t i = 0; i < edits->length(); i++) {
-    auto* edit = edits->get(i);
-    int node_id;
-    if (!base::StringToInt(edit->getStyleSheetId(), &node_id))
-      return ui::devtools::protocol::Response::Error("Invalid node id");
-
-    gfx::Rect updated_bounds;
-    bool visible = false;
-    if (!GetPropertiesForNodeId(node_id, &updated_bounds, &visible))
-      return NodeNotFoundError(node_id);
-
-    ui::devtools::protocol::Response response(
-        ParseProperties(edit->getText(), &updated_bounds, &visible));
-    if (!response.isSuccess())
-      return response;
-
-    updated_styles->addItem(BuildCSSStyle(node_id, updated_bounds, visible));
-
-    if (!SetPropertiesForNodeId(node_id, updated_bounds, visible))
-      return NodeNotFoundError(node_id);
-  }
-  *result = std::move(updated_styles);
-  return ui::devtools::protocol::Response::OK();
-}
-
-void AshDevToolsCSSAgent::OnNodeBoundsChanged(int node_id) {
-  InvalidateStyleSheet(node_id);
-}
-
-std::unique_ptr<ui::devtools::protocol::CSS::CSSStyle>
-AshDevToolsCSSAgent::GetStylesForNode(int node_id) {
-  gfx::Rect bounds;
-  bool visible = false;
-  return GetPropertiesForNodeId(node_id, &bounds, &visible)
-             ? BuildCSSStyle(node_id, bounds, visible)
-             : nullptr;
-}
-
-void AshDevToolsCSSAgent::InvalidateStyleSheet(int node_id) {
-  // The stylesheetId for each node is equivalent to its node_id (as a string).
-  frontend()->styleSheetChanged(base::IntToString(node_id));
-}
-
-bool AshDevToolsCSSAgent::GetPropertiesForNodeId(int node_id,
-                                                 gfx::Rect* bounds,
-                                                 bool* visible) {
-  UIElement* ui_element = dom_agent_->GetElementFromNodeId(node_id);
-  if (ui_element) {
-    ui_element->GetBounds(bounds);
-    ui_element->GetVisible(visible);
-    return true;
-  }
-  return false;
-}
-
-bool AshDevToolsCSSAgent::SetPropertiesForNodeId(int node_id,
-                                                 const gfx::Rect& bounds,
-                                                 bool visible) {
-  UIElement* ui_element = dom_agent_->GetElementFromNodeId(node_id);
-  if (ui_element) {
-    ui_element->SetBounds(bounds);
-    ui_element->SetVisible(visible);
-    return true;
-  }
-  return false;
-}
-
-}  // namespace devtools
-}  // namespace ash