Magnifier: Move the cursor directly to the root window host.

ui/aura/root_window.cc

Index: ui/aura/root_window.cc
diff --git a/ui/aura/root_window.cc b/ui/aura/root_window.cc
index 968a25ce6edd18ff3a3bcac12f54f85e287bc8aa..1d7965f3703f8fe80c27401aeac78e3db83699e0 100644
--- a/ui/aura/root_window.cc
+++ b/ui/aura/root_window.cc
@@ -289,9 +289,9 @@ void RootWindow::OnMouseEventsEnableStateChanged(bool enabled) {
 }
 
 void RootWindow::MoveCursorTo(const gfx::Point& location_in_dip) {
-  gfx::Point3F point_3f(location_in_dip);
-  GetRootTransform().TransformPoint(point_3f);
-  host_->MoveCursorTo(gfx::ToFlooredPoint(point_3f.AsPointF()));
+  gfx::Point location(location_in_dip);
+  ConvertPointToHost(&location);
+  host_->MoveCursorTo(location);
   SetLastMouseLocation(this, location_in_dip);
   client::CursorClient* cursor_client = client::GetCursorClient(this);
   if (cursor_client) {
@@ -301,6 +301,21 @@ void RootWindow::MoveCursorTo(const gfx::Point& location_in_dip) {
   }
 }
 
+void RootWindow::MoveCursorToHostLoation(const gfx::Point& host_location) {
+  host_->MoveCursorTo(host_location);
+  gfx::Point root_location(host_location);
+  ConvertPointFromHost(&root_location);
+  SetLastMouseLocation(this, root_location);
+  client::CursorClient* cursor_client = client::GetCursorClient(this);
+  if (cursor_client) {
+    const gfx::Display& display =
+        gfx::Screen::GetScreenFor(this)->GetDisplayNearestWindow(this);
+    cursor_client->SetDisplay(display);
+  }
+
+  synthesize_mouse_move_ = false;
+}
+
 bool RootWindow::ConfineCursorToWindow() {
   // We would like to be able to confine the cursor to that window. However,
   // currently, we do not have such functionality in X. So we just confine