Gesture event hit test refactoring and reduction

Source/core/core.gypi

 {
     'includes': [
       'core_generated.gypi',
     ],
     'variables': {
         # Files for which bindings (.cpp and .h files) will be generated
         'core_idl_files': [
             'animation/Animation.idl',
             'animation/AnimationEffect.idl',
             'animation/AnimationPlayer.idl',
@@ skipping 1399 matching lines @@
             'page/CreateWindow.h',
             'page/DOMSelection.cpp',
             'page/DOMSelection.h',
             'page/DOMWindowPagePopup.cpp',
             'page/DOMWindowPagePopup.h',
             'page/DragController.cpp',
             'page/DragData.cpp',
             'page/EventHandler.cpp',
             'page/EventSource.cpp',
             'page/EventSource.h',
+            'page/EventWithHitTestResults.h',
             'page/FocusController.cpp',
             'page/FocusType.h',
             'page/FrameTree.cpp',
             'page/InjectedStyleSheets.cpp',
             'page/InjectedStyleSheets.h',
-            'page/MouseEventWithHitTestResults.cpp',
-            'page/MouseEventWithHitTestResults.h',
             'page/NetworkStateNotifier.cpp',
             'page/NetworkStateNotifier.h',
             'page/Page.cpp',
             'page/Page.h',
             'page/PageAnimator.cpp',
             'page/PageAnimator.h',
             'page/PageLifecycleNotifier.cpp',
             'page/PageLifecycleNotifier.h',
             'page/PageLifecycleObserver.cpp',
             'page/PageLifecycleObserver.h',
@@ skipping 2009 matching lines @@
             'loader/MixedContentCheckerTest.cpp',
             'page/NetworkStateNotifierTest.cpp',
             'rendering/RenderOverflowTest.cpp',
             'rendering/shapes/BoxShapeTest.cpp',
             'testing/UnitTestHelpers.cpp',
             'testing/UnitTestHelpers.h',
             'xml/parser/SharedBufferReaderTest.cpp',
         ],
     }
 }