Aura/Ash split: Move ScreenAura to ash::ScreenAsh.

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 cc0281965fc4ced31c26ec14f9479b02d9dc71e4..0306ec18a5a43a84e440bbc77430f03398172af0 100644
--- a/ui/aura/root_window.cc
+++ b/ui/aura/root_window.cc
@@ -22,7 +22,6 @@
 #include "ui/aura/event_filter.h"
 #include "ui/aura/focus_manager.h"
 #include "ui/aura/gestures/gesture_recognizer.h"
-#include "ui/aura/screen_aura.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_delegate.h"
 #include "ui/base/hit_test.h"
@@ -91,7 +90,6 @@ RootWindow::RootWindow()
       mouse_button_flags_(0),
       last_cursor_(kCursorNull),
       cursor_shown_(true),
-      ALLOW_THIS_IN_INITIALIZER_LIST(screen_(new ScreenAura(this))),
       capture_window_(NULL),
       mouse_pressed_handler_(NULL),
       mouse_moved_handler_(NULL),
@@ -104,7 +102,6 @@ RootWindow::RootWindow()
       waiting_on_compositing_end_(false),
       draw_on_compositing_end_(false) {
   SetName("RootWindow");
-  gfx::Screen::SetInstance(screen_);
   last_mouse_location_ = host_->QueryMouseLocation();
 
   ui::Compositor::Initialize(false);
@@ -148,14 +145,6 @@ gfx::Size RootWindow::GetHostSize() const {
   return rect.size();
 }
 
-void RootWindow::SetScreenWorkAreaInsets(const gfx::Insets& insets) {
-  if (screen_->work_area_insets() == insets)
-    return;
-  screen_->set_work_area_insets(insets);
-  FOR_EACH_OBSERVER(RootWindowObserver, observers_,
-                    OnScreenWorkAreaInsetsChanged());
-}
-
 void RootWindow::SetCursor(gfx::NativeCursor cursor) {
   last_cursor_ = cursor;
   // A lot of code seems to depend on NULL cursors actually showing an arrow,