Create a visible window with class name Chrome_RenderWidgetHostHWND which corresponds to the bounds…

content/browser/accessibility/browser_accessibility_win_unittest.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 "base/memory/scoped_ptr.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/win/scoped_bstr.h"
 #include "base/win/scoped_comptr.h"
 #include "base/win/scoped_variant.h"
 #include "content/browser/accessibility/browser_accessibility_manager.h"
 #include "content/browser/accessibility/browser_accessibility_manager_win.h"
 #include "content/browser/accessibility/browser_accessibility_state_impl.h"
 #include "content/browser/accessibility/browser_accessibility_win.h"
+#include "content/browser/renderer_host/legacy_render_widget_host_win.h"
 #include "content/common/accessibility_messages.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/base/win/atl_module.h"
 
 namespace content {
 namespace {
 
 
 // CountedBrowserAccessibility ------------------------------------------------
 
@@ skipping 574 matching lines @@
   ASSERT_EQ(0, CountedBrowserAccessibility::num_instances());
 }
 
 TEST_F(BrowserAccessibilityTest, TestCreateEmptyDocument) {
   // Try creating an empty document with busy state. Readonly is
   // set automatically.
   CountedBrowserAccessibility::reset();
   const int32 busy_state = 1 << ui::AX_STATE_BUSY;
   const int32 readonly_state = 1 << ui::AX_STATE_READONLY;
   const int32 enabled_state = 1 << blink::WebAXStateEnabled;
+  scoped_ptr<content::LegacyRenderWidgetHostHWND> accessible_hwnd(
+      new content::LegacyRenderWidgetHostHWND(GetDesktopWindow()));
   scoped_ptr<BrowserAccessibilityManager> manager(
       new BrowserAccessibilityManagerWin(
-          GetDesktopWindow(),
+          accessible_hwnd.get(),
           NULL,
           BrowserAccessibilityManagerWin::GetEmptyDocument(),
           NULL,
           new CountedBrowserAccessibilityFactory()));
 
   // Verify the root is as we expect by default.
   BrowserAccessibility* root = manager->GetRoot();
   EXPECT_EQ(0, root->renderer_id());
   EXPECT_EQ(ui::AX_ROLE_ROOT_WEB_AREA, root->role());
   EXPECT_EQ(busy_state | readonly_state | enabled_state, root->state());
@@ skipping 61 matching lines @@
 }
 
 TEST(BrowserAccessibilityManagerWinTest, TestAccessibleHWND) {
   HWND desktop_hwnd = GetDesktopWindow();
   base::win::ScopedComPtr<IAccessible> desktop_hwnd_iaccessible;
   ASSERT_EQ(S_OK, AccessibleObjectFromWindow(
       desktop_hwnd, OBJID_CLIENT,
       IID_IAccessible,
       reinterpret_cast<void**>(desktop_hwnd_iaccessible.Receive())));
 
+  scoped_ptr<content::LegacyRenderWidgetHostHWND> accessible_hwnd(
+      new content::LegacyRenderWidgetHostHWND(GetDesktopWindow()));
+
   scoped_ptr<BrowserAccessibilityManagerWin> manager(
       new BrowserAccessibilityManagerWin(
-          desktop_hwnd,
+          accessible_hwnd.get(),
           desktop_hwnd_iaccessible,
           BrowserAccessibilityManagerWin::GetEmptyDocument(),
           NULL));
   ASSERT_EQ(desktop_hwnd, manager->parent_hwnd());
 
   // Enabling screen reader support and calling MaybeCallNotifyWinEvent
   // should trigger creating the AccessibleHWND, and we should now get a
   // new parent_hwnd with the right window class to fool older screen
   // readers.
   BrowserAccessibilityStateImpl::GetInstance()->OnScreenReaderDetected();
   manager->MaybeCallNotifyWinEvent(0, 0);
   HWND new_parent_hwnd = manager->parent_hwnd();
   ASSERT_NE(desktop_hwnd, new_parent_hwnd);
   WCHAR hwnd_class_name[256];
   ASSERT_NE(0, GetClassName(new_parent_hwnd, hwnd_class_name, 256));
   ASSERT_STREQ(L"Chrome_RenderWidgetHostHWND", hwnd_class_name);
 
   // Destroy the hwnd explicitly; that should trigger clearing parent_hwnd().
   DestroyWindow(new_parent_hwnd);
   ASSERT_EQ(NULL, manager->parent_hwnd());
 
   // Now create it again.
+  accessible_hwnd.reset(new content::LegacyRenderWidgetHostHWND(
+      GetDesktopWindow()));
   manager.reset(
       new BrowserAccessibilityManagerWin(
-          desktop_hwnd,
+          accessible_hwnd.get(),
           desktop_hwnd_iaccessible,
           BrowserAccessibilityManagerWin::GetEmptyDocument(),
           NULL));
   manager->MaybeCallNotifyWinEvent(0, 0);
   new_parent_hwnd = manager->parent_hwnd();
   ASSERT_FALSE(NULL == new_parent_hwnd);
 
   // This time, destroy the manager first, make sure the AccessibleHWND doesn't
   // crash on destruction (to be caught by SyzyASAN or other tools).
   manager.reset(NULL);
 }
 
 }  // namespace content