Revert of Implement NativeViewAccessibilityWin using AXPlatformNodeWin.

ui/accessibility/platform/test_ax_node_wrapper.cc

-// Copyright 2015 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 "base/containers/hash_tables.h"
-#include "ui/accessibility/platform/test_ax_node_wrapper.h"
-
-namespace ui {
-
-namespace {
-
-// A global map from AXNodes to TestAXNodeWrappers.
-base::hash_map<AXNode*, TestAXNodeWrapper*> g_node_to_wrapper_map;
-
-// A global coordinate offset.
-gfx::Vector2d g_offset;
-
-// A simple implementation of AXTreeDelegate to catch when AXNodes are
-// deleted so we can delete their wrappers.
-class TestAXTreeDelegate : public AXTreeDelegate {
-  void OnNodeWillBeDeleted(AXNode* node) override {
-    auto iter = g_node_to_wrapper_map.find(node);
-    if (iter != g_node_to_wrapper_map.end()) {
-      TestAXNodeWrapper* wrapper = iter->second;
-      delete wrapper;
-      g_node_to_wrapper_map.erase(iter->first);
-    }
-  }
-  void OnSubtreeWillBeDeleted(AXNode* node) override {}
-  void OnNodeCreated(AXNode* node) override {}
-  void OnNodeChanged(AXNode* node) override {}
-  void OnAtomicUpdateFinished(bool root_changed,
-                              const std::vector<Change>& changes) override {}
-};
-
-TestAXTreeDelegate g_ax_tree_delegate;
-
-}  // namespace
-
-// static
-TestAXNodeWrapper* TestAXNodeWrapper::GetOrCreate(AXTree* tree, AXNode* node) {
-  // Just return NULL if |node| is NULL; this makes test code simpler because
-  // now we don't have to null-check AXNode* every time we call GetOrCreate.
-  if (!node)
-    return nullptr;
-
-  tree->SetDelegate(&g_ax_tree_delegate);
-  auto iter = g_node_to_wrapper_map.find(node);
-  if (iter != g_node_to_wrapper_map.end())
-    return iter->second;
-  TestAXNodeWrapper* wrapper = new TestAXNodeWrapper(tree, node);
-  g_node_to_wrapper_map[node] = wrapper;
-  return wrapper;
-}
-
-// static
-void TestAXNodeWrapper::SetGlobalCoordinateOffset(const gfx::Vector2d& offset) {
-  g_offset = offset;
-}
-
-TestAXNodeWrapper::~TestAXNodeWrapper() {
-  platform_node_->Destroy();
-}
-
-const AXNodeData& TestAXNodeWrapper::GetData() {
-  return node_->data();
-}
-
-gfx::NativeViewAccessible TestAXNodeWrapper::GetParent() {
-  TestAXNodeWrapper* parent_wrapper = GetOrCreate(tree_, node_->parent());
-  return parent_wrapper ?
-      parent_wrapper->ax_platform_node()->GetNativeViewAccessible() :
-      nullptr;
-}
-
-int TestAXNodeWrapper::GetChildCount() {
-  return node_->child_count();
-}
-
-gfx::NativeViewAccessible TestAXNodeWrapper::ChildAtIndex(int index) {
-  CHECK_GE(index, 0);
-  CHECK_LT(index, GetChildCount());
-  TestAXNodeWrapper* child_wrapper =
-      GetOrCreate(tree_, node_->children()[index]);
-  return child_wrapper ?
-      child_wrapper->ax_platform_node()->GetNativeViewAccessible() :
-      nullptr;
-}
-
-gfx::Vector2d TestAXNodeWrapper::GetGlobalCoordinateOffset() {
-  return g_offset;
-}
-
-gfx::NativeViewAccessible TestAXNodeWrapper::HitTestSync(int x, int y) {
-  return nullptr;
-}
-
-gfx::NativeViewAccessible TestAXNodeWrapper::GetFocus() {
-  return nullptr;
-}
-
-gfx::AcceleratedWidget
-TestAXNodeWrapper::GetTargetForNativeAccessibilityEvent() {
-  return gfx::kNullAcceleratedWidget;
-}
-
-void TestAXNodeWrapper::DoDefaultAction() {
-}
-
-bool TestAXNodeWrapper::SetStringValue(const base::string16& new_value) {
-  return false;
-}
-
-TestAXNodeWrapper::TestAXNodeWrapper(AXTree* tree, AXNode* node)
-    : tree_(tree),
-      node_(node),
-      platform_node_(AXPlatformNode::Create(this)) {
-}
-
-}  // namespace ui