Remove mouse events from Sky

sky/engine/core/core.gni

Index: sky/engine/core/core.gni
diff --git a/sky/engine/core/core.gni b/sky/engine/core/core.gni
index 267589a76435e9f3ab9073e6c9b273f1b6e38699..67414ca0f1c0212616f0af39e8db82bb8c73d3da 100644
--- a/sky/engine/core/core.gni
+++ b/sky/engine/core/core.gni
@@ -506,7 +506,6 @@ sky_core_files = [
   "dom/shadow/SelectRuleFeatureSet.h",
   "dom/shadow/ShadowRoot.cpp",
   "dom/shadow/ShadowRoot.h",
-  "dom/SimulatedClickOptions.h",
   "dom/SpaceSplitString.cpp",
   "dom/SpaceSplitString.h",
   "dom/StaticNodeList.h",
@@ -664,8 +663,6 @@ sky_core_files = [
   "events/HashChangeEvent.h",
   "events/KeyboardEvent.cpp",
   "events/KeyboardEvent.h",
-  "events/MouseEvent.cpp",
-  "events/MouseEvent.h",
   "events/MouseRelatedEvent.cpp",
   "events/MouseRelatedEvent.h",
   "events/NodeEventContext.cpp",
@@ -699,8 +696,6 @@ sky_core_files = [
   "events/UIEvent.h",
   "events/UIEventWithKeyState.cpp",
   "events/UIEventWithKeyState.h",
-  "events/WheelEvent.cpp",
-  "events/WheelEvent.h",
   "events/WindowEventContext.cpp",
   "events/WindowEventContext.h",
   "fetch/CachePolicy.h",
@@ -820,7 +815,6 @@ sky_core_files = [
   "html/canvas/EXTTextureFilterAnisotropic.h",
   "html/canvas/HitRegion.cpp",
   "html/canvas/HitRegion.h",
-  "html/canvas/MouseEventHitRegion.h",
   "html/canvas/OESElementIndexUint.cpp",
   "html/canvas/OESElementIndexUint.h",
   "html/canvas/OESStandardDerivatives.cpp",
@@ -1018,7 +1012,6 @@ sky_core_files = [
   "loader/ImageLoader.h",
   "loader/MojoLoader.cpp",
   "loader/MojoLoader.h",
-  "loader/NavigationPolicy.cpp",
   "loader/NavigationPolicy.h",
   "loader/UniqueIdentifier.cpp",
   "loader/UniqueIdentifier.h",
@@ -1290,7 +1283,6 @@ core_idl_files = get_path_info([
                                  "events/GestureEvent.idl",
                                  "events/HashChangeEvent.idl",
                                  "events/KeyboardEvent.idl",
-                                 "events/MouseEvent.idl",
                                  "events/PageTransitionEvent.idl",
                                  "events/PointerEvent.idl",
                                  "events/PopStateEvent.idl",
@@ -1300,7 +1292,6 @@ core_idl_files = get_path_info([
                                  "events/TouchEvent.idl",
                                  "events/TransitionEvent.idl",
                                  "events/UIEvent.idl",
-                                 "events/WheelEvent.idl",
                                  "frame/Console.idl",
                                  "frame/ConsoleBase.idl",
                                  "frame/History.idl",
@@ -1386,7 +1377,6 @@ core_dependency_idl_files =
                     "html/canvas/ArrayBufferView.idl",
                     "html/canvas/CanvasPathMethods.idl",
                     "html/canvas/DataView.idl",
-                    "html/canvas/MouseEventHitRegion.idl",
                     "html/canvas/WebGLRenderingContextBase.idl",
                   ],
                   "abspath")
@@ -1404,7 +1394,6 @@ core_event_idl_files = get_path_info([
                                        "events/GestureEvent.idl",
                                        "events/HashChangeEvent.idl",
                                        "events/KeyboardEvent.idl",
-                                       "events/MouseEvent.idl",
                                        "events/PageTransitionEvent.idl",
                                        "events/PointerEvent.idl",
                                        "events/PopStateEvent.idl",
@@ -1415,7 +1404,6 @@ core_event_idl_files = get_path_info([
                                        "events/TransitionEvent.idl",
                                        "events/UIEvent.idl",
                                        "events/AnimationEvent.idl",
-                                       "events/WheelEvent.idl",
                                        "html/canvas/WebGLContextEvent.idl",
                                      ],
                                      "abspath")