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..d1ef0744be35c5527916535af9dd4c253c11baee 100644
--- a/ui/aura/root_window_host_ozone.cc
+++ b/ui/aura/root_window_host_ozone.cc
@@ -77,7 +77,7 @@ 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 +97,7 @@ void WindowTreeHostOzone::OnCursorVisibilityChanged(bool show) {
 }
 
 void WindowTreeHostOzone::MoveCursorTo(const gfx::Point& location) {
-  NOTIMPLEMENTED();
+  gfx::SurfaceFactoryOzone::GetInstance()->MoveCursorTo(location);
 }
 
 void WindowTreeHostOzone::PostNativeEvent(