Add display::GetDisplayNearestView

ui/display/screen.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/display/screen.h"
 
 #include "ui/display/display.h"
 #include "ui/gfx/geometry/rect.h"
 
 namespace display {
@@ skipping 16 matching lines @@
     g_screen = CreateNativeScreen();
 #endif
   return g_screen;
 }
 
 // static
 void Screen::SetScreenInstance(Screen* instance) {
   g_screen = instance;
 }
 
+Display Screen::GetDisplayNearestView(gfx::NativeView view) const {
+  // TODO(jinsukkim): Use |WindowForView()| to convert to window.
+  return GetDisplayNearestWindow(view);
+}
+
 gfx::Rect Screen::ScreenToDIPRectInWindow(gfx::NativeView view,
                                           const gfx::Rect& screen_rect) const {
   float scale = GetDisplayNearestWindow(view).device_scale_factor();
   return ScaleToEnclosingRect(screen_rect, 1.0f / scale);
 }
 
 gfx::Rect Screen::DIPToScreenRectInWindow(gfx::NativeView view,
                                           const gfx::Rect& dip_rect) const {
   float scale = GetDisplayNearestWindow(view).device_scale_factor();
   return ScaleToEnclosingRect(dip_rect, scale);
 }
 
 bool Screen::GetDisplayWithDisplayId(int64_t display_id,
                                      Display* display) const {
   for (const Display& display_in_list : GetAllDisplays()) {
     if (display_in_list.id() == display_id) {
       *display = display_in_list;
       return true;
     }
   }
   return false;
 }
 
 }  // namespace display