Adding Ozone CursorLoader and necessary API functions to allow setting the cursor in SoftwareFactor…

ui/aura/root_window_host_ozone.cc

Index: ui/aura/root_window_host_ozone.cc
diff --git a/ui/aura/root_window_host_ozone.cc b/ui/aura/root_window_host_ozone.cc
index 9af68e9cb33782f39be6f9d3eaf0f7e8a4f99466..8fb66f68e22e6ba873a69c8ab58212e1c5953c24 100644
--- a/ui/aura/root_window_host_ozone.cc
+++ b/ui/aura/root_window_host_ozone.cc
@@ -38,6 +38,13 @@ WindowTreeHostOzone::~WindowTreeHostOzone() {
 
 uint32_t WindowTreeHostOzone::Dispatch(const base::NativeEvent& ne) {
   ui::Event* event = static_cast<ui::Event*>(ne);
+
+  if (event->type() == ui::ET_MOUSE_MOVED) {
+    ui::MouseEvent* mouse_event = static_cast<ui::MouseEvent*>(event);
+    gfx::SurfaceFactoryOzone::GetInstance()->MoveCursorTo(
+        mouse_event->location());
+  }
+
   ui::EventDispatchDetails details ALLOW_UNUSED = SendEventToProcessor(event);
   return POST_DISPATCH_NONE;
 }
@@ -77,7 +84,7 @@ void WindowTreeHostOzone::SetCapture() { NOTIMPLEMENTED(); }
 void WindowTreeHostOzone::ReleaseCapture() { NOTIMPLEMENTED(); }
 
 void WindowTreeHostOzone::SetCursor(gfx::NativeCursor cursor) {
-  NOTIMPLEMENTED();
+  gfx::SurfaceFactoryOzone::GetInstance()->SetCursorImage(*cursor.platform());
 }
 
 bool WindowTreeHostOzone::QueryMouseLocation(gfx::Point* location_return) {
@@ -97,7 +104,7 @@ void WindowTreeHostOzone::OnCursorVisibilityChanged(bool show) {
 }
 
 void WindowTreeHostOzone::MoveCursorTo(const gfx::Point& location) {
-  NOTIMPLEMENTED();
+  gfx::SurfaceFactoryOzone::GetInstance()->MoveCursorTo(location);
 }
 
 void WindowTreeHostOzone::PostNativeEvent(