Re-land: Implement NativeViewAccessibilityWin using AXPlatformNodeWin.

ui/views/accessibility/native_view_accessibility_win_unittest.cc

 // Copyright 2013 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 <oleacc.h>
 
 #include "base/win/scoped_bstr.h"
 #include "base/win/scoped_comptr.h"
 #include "base/win/scoped_variant.h"
 #include "third_party/iaccessible2/ia2_api_all.h"
@@ skipping 63 matching lines @@
   ASSERT_EQ(S_OK, textfield_accessible->get_accValue(
       childid_self, value.Receive()));
   ASSERT_STREQ(L"Value", value);
 
   ScopedBstr new_value(L"New value");
   ASSERT_EQ(S_OK, textfield_accessible->put_accValue(childid_self, new_value));
 
   ASSERT_STREQ(L"New value", textfield->text().c_str());
 }
 
-TEST_F(NativeViewAcccessibilityWinTest, UnattachedWebView) {
-  // This is a regression test. Calling get_accChild on the native accessible
-  // object for a WebView with no attached WebContents was causing an
-  // infinite loop and crash. This test simulates that with an ordinary
-  // View that registers itself as a web view with NativeViewAcccessibility.
-
-  Widget widget;
-  Widget::InitParams init_params =
-      CreateParams(Widget::InitParams::TYPE_POPUP);
-  init_params.ownership = Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
-  widget.Init(init_params);
-
-  View* content = new View;
-  widget.SetContentsView(content);
-
-  View* web_view = new View;
-  content->AddChildView(web_view);
-  NativeViewAccessibility::RegisterWebView(web_view);
-
-  ScopedComPtr<IAccessible> web_view_accessible(
-      web_view->GetNativeViewAccessible());
-  ScopedComPtr<IDispatch> result_dispatch;
-  ScopedVariant child_index(-999);
-  ASSERT_EQ(E_FAIL, web_view_accessible->get_accChild(
-      child_index, result_dispatch.Receive()));
-
-  NativeViewAccessibility::UnregisterWebView(web_view);
-}
-
 TEST_F(NativeViewAcccessibilityWinTest, AuraOwnedWidgets) {
   Widget widget;
   Widget::InitParams init_params =
       CreateParams(Widget::InitParams::TYPE_WINDOW);
   init_params.ownership = Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
   widget.Init(init_params);
 
   ScopedComPtr<IAccessible> root_view_accessible(
       widget.GetRootView()->GetNativeViewAccessible());
 
   LONG child_count = 0;
   ASSERT_EQ(S_OK, root_view_accessible->get_accChildCount(&child_count));
   ASSERT_EQ(1L, child_count);
 
+  ScopedComPtr<IDispatch> child_view_dispatch;
+  ScopedComPtr<IAccessible> child_view_accessible;
+  ScopedVariant child_index_1(1);
+  ASSERT_EQ(S_OK, root_view_accessible->get_accChild(
+      child_index_1, child_view_dispatch.Receive()));
+  ASSERT_EQ(S_OK, child_view_dispatch.QueryInterface(
+      child_view_accessible.Receive()));
+
   Widget owned_widget;
   Widget::InitParams owned_init_params =
       CreateParams(Widget::InitParams::TYPE_POPUP);
   owned_init_params.ownership = Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
   owned_init_params.parent = widget.GetNativeView();
   owned_widget.Init(owned_init_params);
   owned_widget.Show();
 
   ASSERT_EQ(S_OK, root_view_accessible->get_accChildCount(&child_count));
   ASSERT_EQ(2L, child_count);
+
+  ScopedComPtr<IDispatch> child_widget_dispatch;
+  ScopedComPtr<IAccessible> child_widget_accessible;
+  ScopedVariant child_index_2(2);
+  ASSERT_EQ(S_OK, root_view_accessible->get_accChild(
+      child_index_2, child_widget_dispatch.Receive()));
+  ASSERT_EQ(S_OK, child_widget_dispatch.QueryInterface(
+      child_widget_accessible.Receive()));
+
+  ScopedComPtr<IDispatch> child_widget_sibling_dispatch;
+  ScopedComPtr<IAccessible> child_widget_sibling_accessible;
+  ScopedVariant childid_self(CHILDID_SELF);
+  ScopedVariant result;
+  ASSERT_EQ(S_OK, child_widget_accessible->accNavigate(
+      NAVDIR_PREVIOUS, childid_self, result.Receive()));
+  ASSERT_EQ(VT_DISPATCH, V_VT(&result));
+  child_widget_sibling_dispatch = V_DISPATCH(&result);
+  ASSERT_EQ(S_OK, child_widget_sibling_dispatch.QueryInterface(
+      child_widget_sibling_accessible.Receive()));
+  ASSERT_EQ(child_view_accessible.get(), child_widget_sibling_accessible.get());
+
+  ScopedComPtr<IDispatch> child_widget_parent_dispatch;
+  ScopedComPtr<IAccessible> child_widget_parent_accessible;
+  ASSERT_EQ(S_OK, child_widget_accessible->get_accParent(
+      child_widget_parent_dispatch.Receive()));
+  ASSERT_EQ(S_OK, child_widget_parent_dispatch.QueryInterface(
+      child_widget_parent_accessible.Receive()));
+  ASSERT_EQ(root_view_accessible.get(), child_widget_parent_accessible.get());
 }
 
 TEST_F(NativeViewAcccessibilityWinTest, RetrieveAllAlerts) {
   Widget widget;
   Widget::InitParams init_params =
       CreateParams(Widget::InitParams::TYPE_POPUP);
   init_params.ownership = Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
   widget.Init(init_params);
 
   View* content = new View;
@@ skipping 48 matching lines @@
   delete infobar;
   ASSERT_EQ(S_OK, root_view_accessible->get_relationTargetsOfType(
       alerts_bstr, 0, &targets, &n_targets));
   ASSERT_EQ(1, n_targets);
   ASSERT_TRUE(infobar2_accessible.IsSameObject(targets[0]));
   CoTaskMemFree(targets);
 }
 
 }  // namespace test
 }  // namespace views