Refactored touch-events flag test, correcting "enabled" logic.

ui/views/win/hwnd_message_handler.cc

Index: ui/views/win/hwnd_message_handler.cc
diff --git a/ui/views/win/hwnd_message_handler.cc b/ui/views/win/hwnd_message_handler.cc
index 5facaac69cbc08e7a63daed6b5da572f6c25b298..201bbb024e1681e8096f05a263be36948fa1af17 100644
--- a/ui/views/win/hwnd_message_handler.cc
+++ b/ui/views/win/hwnd_message_handler.cc
@@ -14,6 +14,7 @@
 #include "ui/base/events/event_utils.h"
 #include "ui/base/gestures/gesture_sequence.h"
 #include "ui/base/keycodes/keyboard_code_conversion_win.h"
+#include "ui/base/touch/touch_enabled.h"
 #include "ui/base/win/dpi.h"
 #include "ui/base/win/hwnd_util.h"
 #include "ui/base/win/mouse_wheel_util.h"
@@ -1287,8 +1288,9 @@ LRESULT HWNDMessageHandler::OnCreate(CREATESTRUCT* create_struct) {
   // Get access to a modifiable copy of the system menu.
   GetSystemMenu(hwnd(), false);
 
-  if (base::win::GetVersion() >= base::win::VERSION_WIN7)
-    RegisterTouchWindow(hwnd(), 0);
+  if (base::win::GetVersion() >= base::win::VERSION_WIN7 &&
+      ui::IsTouchEnabled())
+    RegisterTouchWindow(hwnd(), TWF_WANTPALM);
 
   // We need to allow the delegate to size its contents since the window may not
   // receive a size notification when its initial bounds are specified at window