[Chromecast] Set Cast Ozone display size correctly first time

ui/ozone/platform/cast/surface_factory_cast.h

 // 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.
 
 #ifndef UI_OZONE_PLATFORM_CAST_SURFACE_FACTORY_CAST_H_
 #define UI_OZONE_PLATFORM_CAST_SURFACE_FACTORY_CAST_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 48 matching lines @@
   void CreateDisplayTypeAndWindowIfNeeded();
   void DestroyDisplayTypeAndWindow();
   void DestroyWindow();
   void InitializeHardware();
 
   HardwareState state_;
   void* display_type_;
   bool have_display_type_;
   void* window_;
   gfx::Size display_size_;
-  gfx::Size new_display_size_;
   std::unique_ptr<chromecast::CastEglPlatform> egl_platform_;
 
   // Overlays scheduled in current and previous frames:
   int overlay_count_;
   gfx::Rect overlay_bounds_;
   int previous_frame_overlay_count_;
   gfx::Rect previous_frame_overlay_bounds_;
 
   DISALLOW_COPY_AND_ASSIGN(SurfaceFactoryCast);
 };
 
 }  // namespace ui
 
 #endif  // UI_OZONE_PLATFORM_CAST_SURFACE_FACTORY_CAST_H_