Flag mouse messages received when cursor is hidden.

ui/events/win/events_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 <stdint.h>
 #include <windowsx.h>
 
 #include "ui/events/event_constants.h"
 
 #include "base/logging.h"
@@ skipping 378 matching lines @@
   return modifiers;
 }
 
 // Windows emulates mouse messages for touch events.
 bool IsMouseEventFromTouch(UINT message) {
   return (message >= WM_MOUSEFIRST) && (message <= WM_MOUSELAST) &&
       (GetMessageExtraInfo() & MOUSEEVENTF_FROMTOUCH) ==
       MOUSEEVENTF_FROMTOUCH;
 }
 
+bool IsWindowsCursorHidden() {
+  CURSORINFO c = {sizeof(CURSORINFO)};
+  if (GetCursorInfo(&c))
+    return !(c.flags & CURSOR_SHOWING);
+  NOTREACHED();
+  return false;
+}
+
 // Conversion scan_code and LParam each other.
 // uint16_t scan_code:
 //     ui/events/keycodes/dom/keycode_converter_data.inc
 // 0 - 15bits: represetns the scan code.
 // 28 - 30 bits (0xE000): represents whether this is an extended key or not.
 //
 // LPARAM lParam:
 //     http://msdn.microsoft.com/en-us/library/windows/desktop/ms644984.aspx
 // 16 - 23bits: represetns the scan code.
 // 24bit (0x0100): represents whether this is an extended key or not.
 uint16_t GetScanCodeFromLParam(LPARAM l_param) {
   uint16_t scan_code = ((l_param >> 16) & 0x00FF);
   if (l_param & (1 << 24))
     scan_code |= 0xE000;
   return scan_code;
 }
 
 LPARAM GetLParamFromScanCode(uint16_t scan_code) {
   LPARAM l_param = static_cast<LPARAM>(scan_code & 0x00FF) << 16;
   if ((scan_code & 0xE000) == 0xE000)
     l_param |= (1 << 24);
   return l_param;
 }
 
 }  // namespace ui