Switch RenderWidgetHostViewAndroid to use Screen

ui/display/display.h

 // Copyright (c) 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.
 
 #ifndef UI_DISPLAY_DISPLAY_H_
 #define UI_DISPLAY_DISPLAY_H_
 
 #include <stdint.h>
 
 #include "base/compiler_specific.h"
@@ skipping 120 matching lines @@
   // Sets the display's size. This updates the work area using the same insets
   // between old bounds and work area.
   void SetSize(const gfx::Size& size_in_pixel);
 
   // Computes and updates the display's work are using
   // |work_area_insets| and the bounds.
   void UpdateWorkAreaFromInsets(const gfx::Insets& work_area_insets);
 
   // Returns the display's size in pixel coordinates.
   gfx::Size GetSizeInPixel() const;
+#if defined(OS_ANDROID)
+  void set_size_in_pixels(const gfx::Size& size) { size_in_pixels_ = size; }
+#endif  // defined(OS_ANDROID)
 
   // Returns a string representation of the display;
   std::string ToString() const;
 
   // True if the display contains valid display id.
   bool is_valid() const { return id_ != kInvalidDisplayId; }
 
   // True if the display corresponds to internal panel.
   bool IsInternal() const;
 
@@ skipping 35 matching lines @@
   // True if this is a monochrome display (e.g, for accessiblity). Used by media
   // query APIs.
   bool is_monochrome() const { return is_monochrome_; }
   void set_is_monochrome(bool is_monochrome) {
     is_monochrome_ = is_monochrome;
   }
 
  private:
   int64_t id_;
   gfx::Rect bounds_;
+  // If non-empty, then should be same size as |bounds_|. Used to avoid rounding
+  // errors.
+  gfx::Size size_in_pixels_;
   gfx::Rect work_area_;
   float device_scale_factor_;
   Rotation rotation_ = ROTATE_0;
   TouchSupport touch_support_ = TOUCH_SUPPORT_UNKNOWN;
   gfx::Size maximum_cursor_size_;
   gfx::ICCProfile icc_profile_;
   int color_depth_;
   int depth_per_component_;
   bool is_monochrome_ = false;
 
 #if !defined(OS_IOS)
   friend struct mojo::StructTraits<mojom::DisplayDataView, Display>;
 #endif
 };
 
 }  // namespace display
 
 #endif  // UI_DISPLAY_DISPLAY_H_