Makes Screen functions take a const gfx::NativeView

chromecast/graphics/cast_screen.cc

 // Copyright 2015 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 "chromecast/graphics/cast_screen.h"
 
 #include <stdint.h>
 
 #include "base/command_line.h"
 #include "chromecast/public/graphics_properties_shlib.h"
@@ skipping 42 matching lines @@
 
 int CastScreen::GetNumDisplays() const {
   return 1;
 }
 
 std::vector<display::Display> CastScreen::GetAllDisplays() const {
   return std::vector<display::Display>(1, display_);
 }
 
 display::Display CastScreen::GetDisplayNearestWindow(
-    gfx::NativeWindow window) const {
+    const gfx::NativeWindow window) const {
   return display_;
 }
 
 display::Display CastScreen::GetDisplayNearestPoint(
     const gfx::Point& point) const {
   return display_;
 }
 
 display::Display CastScreen::GetDisplayMatching(
     const gfx::Rect& match_rect) const {
   return display_;
 }
 
 display::Display CastScreen::GetPrimaryDisplay() const {
   return display_;
 }
 
 void CastScreen::AddObserver(display::DisplayObserver* observer) {}
 
 void CastScreen::RemoveObserver(display::DisplayObserver* observer) {}
 
 CastScreen::CastScreen() : display_(kDisplayId) {
   // Device scale factor computed relative to 720p display
   const gfx::Size size = GetScreenResolution();
   const float device_scale_factor = size.height() / 720.0f;
   display_.SetScaleAndBounds(device_scale_factor, gfx::Rect(size));
 }
 
 }  // namespace chromecast