Refactor touch hit-testing hover/active tests.

LayoutTests/fast/events/touch/gesture/gesture-tap-cancel-hover-state-expected.txt

 Gestures go here
 Tests that gesture tapcancel clears hover properly
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
 
 
 See http://crbug.com/316974 for details
 
-Verify hover, active aren't initially set
-PASS isBoxDefault() is true
-tapcancel on element when it is Active should keep hover
-PASS isBoxHoverActive() is true
-PASS isBoxHovered() is true
-tapcancel outside element when it is Active should clear it
-PASS isBoxHoverActive() is true
-PASS isBoxDefault() is true
-tapcancel on element when it is hovered but not active should keep hover
-PASS isBoxHovered() is true
-PASS isBoxHovered() is true
-tapcancel outside element when it is hovered but not active should keep hover
-PASS isBoxHovered() is true
-PASS isBoxHovered() is true
 PASS successfullyParsed is true
 
 TEST COMPLETE
+Verify hover, active aren't initially set
+PASS isBoxDefault(box) is true
+tapcancel on element when it is Active should keep hover
+PASS isBoxHoveredAndActive(box) is true
+PASS isBoxHovered(box) is true
+tapcancel outside element when it is Active should clear it
+PASS isBoxHoveredAndActive(box) is true
+PASS isBoxDefault(box) is true
+tapcancel on element when it is hovered but not active should keep hover
+PASS isBoxHovered(box) is true
+PASS isBoxHovered(box) is true
+tapcancel outside element when it is hovered but not active should keep hover
+PASS isBoxHovered(box) is true
+PASS isBoxHovered(box) is true