Rename WindowTreeHost G|SetBounds to indicate they are in pixels.

ash/display/extended_mouse_warp_controller.cc

Index: ash/display/extended_mouse_warp_controller.cc
diff --git a/ash/display/extended_mouse_warp_controller.cc b/ash/display/extended_mouse_warp_controller.cc
index 9e2a9df79cc55dd1925c4d8d644386ca7222bf69..05b0631055ee9e73785a7ba29348e6b88f56a0ba 100644
--- a/ash/display/extended_mouse_warp_controller.cc
+++ b/ash/display/extended_mouse_warp_controller.cc
@@ -152,8 +152,8 @@ bool ExtendedMouseWarpController::WarpMouseCursor(ui::MouseEvent* event) {
   // has access to the logical display layout.
   // Native events in Ozone are in the native window coordinate system. We need
   // to translate them to get the global position.
-  point_in_native.Offset(target->GetHost()->GetBounds().x(),
-                         target->GetHost()->GetBounds().y());
+  point_in_native.Offset(target->GetHost()->GetBoundsInPixel().x(),
+                         target->GetHost()->GetBoundsInPixel().y());
 #endif
 
   return WarpMouseCursorInNativeCoords(point_in_native, point_in_screen, false);