Fix IWYU violators that don't include scoped_ptr.h in Windows build.

content/browser/accessibility/browser_accessibility_state_impl_win.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 "content/browser/accessibility/browser_accessibility_state_impl.h"
 
 #include <windows.h>
 #include <psapi.h>
 #include <stddef.h>
 
 #include "base/files/file_path.h"
 #include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/string_util.h"
 
 namespace content {
 
 void BrowserAccessibilityStateImpl::UpdatePlatformSpecificHistograms() {
   // NOTE: this method is run from the file thread to reduce jank, since
   // there's no guarantee these system calls will return quickly. Be careful
   // not to add any code that isn't safe to run from a non-main thread!
 
@@ skipping 47 matching lines @@
       zoomtext = true;
   }
 
   UMA_HISTOGRAM_BOOLEAN("Accessibility.WinJAWS", jaws);
   UMA_HISTOGRAM_BOOLEAN("Accessibility.WinNVDA", nvda);
   UMA_HISTOGRAM_BOOLEAN("Accessibility.WinSAToGo", satogo);
   UMA_HISTOGRAM_BOOLEAN("Accessibility.WinZoomText", zoomtext);
 }
 
 }  // namespace content