CSS Media Query now reports touch-support accurately for Windows (retry)

ui/base/touch/touch_device_win.h

Index: ui/base/touch/touch_device_win.h
diff --git a/ui/base/touch/touch_device_win.h b/ui/base/touch/touch_device_win.h
new file mode 100644
index 0000000000000000000000000000000000000000..6d11446d4bafdcc0123d8c31935f104fcfe8ecf0
--- /dev/null
+++ b/ui/base/touch/touch_device_win.h
@@ -0,0 +1,15 @@
+#ifndef UI_BASE_TOUCH_TOUCH_DEVICE_H_
+#define UI_BASE_TOUCH_TOUCH_DEVICE_H_
+
+#include "ui/base/ui_export.h"
+
+namespace ui {
+namespace base {

[Rick Byers, 2012/09/10 18:15:12]

We don't normally use "ui::base", do we?  The ambiguity with ::base could be
annoying if more files started to include this header (as you saw with the build
error).  I did a quick check elsewhere in ui/base/ and found only 'namespace
ui', but maybe I'm missing some.

[girard, 2012/09/10 19:03:03]

The namespace is ambiguous, and this can be annoying.  I would assume that
removing the similar namespace would be troublesome to say the least.  It's not
a big deal to use a full path to specify the namespace.

My bigger concern is that only chromeos complained about this... Apparently the
different compilers or flags have different implementations of Koenig lookup.

+
+// Returns true if a touch device is available.
+UI_EXPORT bool IsTouchDevicePresent();
+
+}  // namespace base
+}  // namespace ui
+
+#endif  // UI_BASE_TOUCH_TOUCH_DEVICE_H_