Revert removal of events

Source/core/platform/chromium/FramelessScrollView.h

Index: Source/core/platform/chromium/FramelessScrollView.h
diff --git a/Source/core/platform/chromium/FramelessScrollView.h b/Source/core/platform/chromium/FramelessScrollView.h
index 945597c6d345d2d337dac36a85d3a49414bcc79a..8999e09ddd5303e71de30588fb3e159884cd51f5 100644
--- a/Source/core/platform/chromium/FramelessScrollView.h
+++ b/Source/core/platform/chromium/FramelessScrollView.h
@@ -39,7 +39,9 @@ namespace WebCore {
     class PlatformGestureEvent;
     class PlatformKeyboardEvent;
     class PlatformMouseEvent;
+#if ENABLE(TOUCH_EVENTS)
     class PlatformTouchEvent;
+#endif
     class PlatformWheelEvent;
 
     // A FramelessScrollView is a ScrollView that can be used to render custom
@@ -62,7 +64,9 @@ namespace WebCore {
         virtual bool handleMouseReleaseEvent(const PlatformMouseEvent&) = 0;
         virtual bool handleWheelEvent(const PlatformWheelEvent&) = 0;
         virtual bool handleKeyEvent(const PlatformKeyboardEvent&) = 0;
+#if ENABLE(TOUCH_EVENTS)
         virtual bool handleTouchEvent(const PlatformTouchEvent&) = 0;
+#endif
         virtual bool handleGestureEvent(const PlatformGestureEvent&) = 0;
 
         // ScrollableArea public methods: