Rename WindowTreeHost functions to indicate pixels/dips.

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 12bd079c0eaaf0987924cf68b5b4226711313d1c..95474fa2f54391f9bbc8f7d4633ce75cb6e6e36c 100644
--- a/ash/display/extended_mouse_warp_controller.cc
+++ b/ash/display/extended_mouse_warp_controller.cc
@@ -140,7 +140,7 @@ bool ExtendedMouseWarpController::WarpMouseCursor(ui::MouseEvent* event) {
     aura::Window* target_root = target->GetRootWindow();
     gfx::Point point_in_native = point_in_screen;
     ::wm::ConvertPointFromScreen(target_root, &point_in_native);
-    target_root->GetHost()->ConvertPointToNativeScreen(&point_in_native);
+    target_root->GetHost()->ConvertPointFromDIPToNativeScreen(&point_in_native);
     return WarpMouseCursorInNativeCoords(point_in_native, point_in_screen,
                                          true);
   }