touch: Always expect XInput2 availability.

chrome/browser/chromeos/frame/panel_controller.cc

Index: chrome/browser/chromeos/frame/panel_controller.cc
diff --git a/chrome/browser/chromeos/frame/panel_controller.cc b/chrome/browser/chromeos/frame/panel_controller.cc
index 66b3ffb2c4a121d704131085611e551d0a7ca498..71c15af71624d45bdd5ce8b7245924860b23134e 100644
--- a/chrome/browser/chromeos/frame/panel_controller.cc
+++ b/chrome/browser/chromeos/frame/panel_controller.cc
@@ -6,10 +6,8 @@
 
 #if defined(TOUCH_UI)
 #include <X11/Xlib.h>
-#if defined(HAVE_XINPUT2)
 #include <X11/extensions/XInput2.h>
 #endif
-#endif
 
 #include <vector>
 
@@ -49,7 +47,6 @@ gfx::Point RootLocationFromXEvent(const XEvent* xev) {
     case MotionNotify:
       return gfx::Point(xev->xmotion.x_root, xev->xmotion.y_root);
 
-#if defined(HAVE_XINPUT2)
     case GenericEvent: {
       const XIDeviceEvent* xiev =
           static_cast<XIDeviceEvent*>(xev->xcookie.data);
@@ -61,7 +58,6 @@ gfx::Point RootLocationFromXEvent(const XEvent* xev) {
                             static_cast<int>(xiev->root_y));
       }
     }
-#endif  // defined(HAVE_XINPUT2)
 
     default:
       NOTREACHED();