Fix crash in the accessibility code in the shared build. The problem is that the ATL module pointer…

base/win/accessibility_misc_utils.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/win/accessibility_misc_utils.h"
-
-#include "base/logging.h"
-
-namespace base {
-namespace win {
-
-// UIA TextProvider implementation.
-UIATextProvider::UIATextProvider()
-    : editable_(false) {}
-
-// static
-bool UIATextProvider::CreateTextProvider(bool editable, IUnknown** provider) {
-  CComObject<UIATextProvider>* text_provider = NULL;
-  HRESULT hr = CComObject<UIATextProvider>::CreateInstance(&text_provider);
-  if (SUCCEEDED(hr)) {
-    DCHECK(text_provider);
-    text_provider->set_editable(editable);
-    text_provider->AddRef();
-    *provider = static_cast<ITextProvider*>(text_provider);
-    return true;
-  }
-  return false;
-}
-
-STDMETHODIMP UIATextProvider::get_IsReadOnly(BOOL* read_only) {
-  *read_only = !editable_;
-  return S_OK;
-}
-
-}  // namespace win
-}  // namespace base