ui: Cleanup class/struct forward declarations

third_party/WebKit/LayoutTests/fast/events/hit-test-counts-expected.txt

Index: third_party/WebKit/LayoutTests/fast/events/hit-test-counts-expected.txt
diff --git a/third_party/WebKit/LayoutTests/fast/events/hit-test-counts-expected.txt b/third_party/WebKit/LayoutTests/fast/events/hit-test-counts-expected.txt
index f130c5a26f49638c8c62d8559141165d596b0c32..fec242b34742f58e6717d7436ea235431100d44d 100644
--- a/third_party/WebKit/LayoutTests/fast/events/hit-test-counts-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/events/hit-test-counts-expected.txt
@@ -26,6 +26,7 @@ GestureScrollBegin: 0+1
 GestureTapCancel: 0+1
 GestureScrollUpdate: 0+0
 GestureScrollEnd: 0+0
+DoubleFingerTouch: 2+0
 
 Event entirely over one iframe nested in another
 ---------------------
@@ -44,6 +45,7 @@ GestureScrollBegin: 0+1 0+1 0+1
 GestureTapCancel: 1+0 1+0 0+1
 GestureScrollUpdate: 0+0 0+0 0+0
 GestureScrollEnd: 0+0 0+0 0+0
+DoubleFingerTouch: 2+0 2+0 2+0
 
 Event near boundary of two iframes
 ---------------------
@@ -62,6 +64,7 @@ GestureScrollBegin: 0+1 0+1 0+0
 GestureTapCancel: 1+0 0+1 0+0
 GestureScrollUpdate: 0+0 0+0 0+0
 GestureScrollEnd: 0+0 0+0 0+0
+DoubleFingerTouch: 2+0 2+0 1+0
 
 Event on a simple div (desktop viewport)
 ---------------------
@@ -80,6 +83,7 @@ GestureScrollBegin: 0+1
 GestureTapCancel: 0+1
 GestureScrollUpdate: 0+0
 GestureScrollEnd: 0+0
+DoubleFingerTouch: 2+0
 
 PASS successfullyParsed is true