Promotes common functions to WmRootWindowController

ash/mus/bridge/wm_root_window_controller_mus.cc

Index: ash/mus/bridge/wm_root_window_controller_mus.cc
diff --git a/ash/mus/bridge/wm_root_window_controller_mus.cc b/ash/mus/bridge/wm_root_window_controller_mus.cc
index fab87820c8e2f1c0b2a3edd97c80c94d88c5e3c8..6e6faed24c8643f5daedd9932c1da893570e4ac1 100644
--- a/ash/mus/bridge/wm_root_window_controller_mus.cc
+++ b/ash/mus/bridge/wm_root_window_controller_mus.cc
@@ -14,7 +14,6 @@
 #include "ui/aura/window.h"
 #include "ui/aura/window_property.h"
 #include "ui/display/display.h"
-#include "ui/views/widget/widget.h"
 
 DECLARE_WINDOW_PROPERTY_TYPE(ash::mus::WmRootWindowControllerMus*);
 
@@ -86,31 +85,6 @@ WmWindow* WmRootWindowControllerMus::GetWindow() {
   return WmWindowMus::Get(root_window_controller_->root());
 }
 
-void WmRootWindowControllerMus::ConfigureWidgetInitParamsForContainer(
-    views::Widget* widget,
-    int shell_container_id,
-    views::Widget::InitParams* init_params) {
-  init_params->parent = WmWindowMus::GetAuraWindow(
-      WmWindowMus::Get(root_window_controller_->root())
-          ->GetChildByShellWindowId(shell_container_id));
-  DCHECK(init_params->parent);
-}
-
-WmWindow* WmRootWindowControllerMus::FindEventTarget(
-    const gfx::Point& location_in_screen) {
-  NOTIMPLEMENTED();
-  return nullptr;
-}
-
-gfx::Point WmRootWindowControllerMus::GetLastMouseLocationInRoot() {
-  gfx::Point location = root_window_controller_->window_manager()
-                            ->window_tree_client()
-                            ->GetCursorScreenPoint();
-  location -=
-      root_window_controller_->display().bounds().origin().OffsetFromOrigin();
-  return location;
-}
-
 bool WmRootWindowControllerMus::ShouldDestroyWindowInCloseChildWindows(
     WmWindow* window) {
   aura::WindowTreeClient* window_tree_client =