Wrap calls to GetTouchInputInfo

ui/base/win/touch_input.cc

+// Copyright (c) 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 "ui/base/win/touch_input.h"
+
+namespace ui {
+
+UI_EXPORT BOOL GetTouchInputInfoWrapper(HTOUCHINPUT handle,
+                                        UINT count,
+                                        PTOUCHINPUT pointer,
+                                        int size) {
+  typedef BOOL(WINAPI *GetTouchInputInfoPtr)(HTOUCHINPUT, UINT,

[scottmg, 2013/03/11 23:49:00]

user32 is delayloaded
https://code.google.com/p/chromium/codesearch#chromium/src/ui/views/views.gyp...
so just doing a version check rather than beating on GetProcAddress would be
fine.

+                                             PTOUCHINPUT, int);
+  GetTouchInputInfoPtr get_touch_input_info_func =
+      reinterpret_cast<GetTouchInputInfoPtr>(
+          GetProcAddress(GetModuleHandleA("user32.dll"), "GetTouchInputInfo"));
+  if (get_touch_input_info_func)
+    return get_touch_input_info_func(handle, count, pointer, size);
+  return FALSE;
+}
+
+}  // namespace ui