Android: compute screen orientation type in the RWHV.

content/browser/renderer_host/render_widget_host_view_mac.mm

 // 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.
 
 #include "content/browser/renderer_host/render_widget_host_view_mac.h"
 
 #import <objc/runtime.h>
 #include <OpenGL/gl.h>
 #include <QuartzCore/QuartzCore.h>
 
@@ skipping 358 matching lines @@
   blink::WebScreenInfo results;
 
   results.deviceScaleFactor = static_cast<int>(display.device_scale_factor());
   results.depth = NSBitsPerPixelFromDepth([screen depth]);
   results.depthPerComponent = NSBitsPerSampleFromDepth([screen depth]);
   results.isMonochrome =
       [[screen colorSpace] colorSpaceModel] == NSGrayColorSpaceModel;
   results.rect = display.bounds();
   results.availableRect = display.work_area();
   results.orientationAngle = display.RotationAsDegree();
+  results.orientationType =
+      content::RenderWidgetHostViewBase::GetOrientationTypeFromDisplay(display);
 
   return results;
 }
 
 void RemoveLayerFromSuperlayer(
     base::scoped_nsobject<CompositingIOSurfaceLayer> layer) {
   // Disable the fade-out animation as the layer is removed.
   ScopedCAActionDisabler disabler;
   [layer removeFromSuperlayer];
 }
@@ skipping 3578 matching lines @@
 
 // "-webkit-app-region: drag | no-drag" is implemented on Mac by excluding
 // regions that are not draggable. (See ControlRegionView in
 // native_app_window_cocoa.mm). This requires the render host view to be
 // draggable by default.
 - (BOOL)mouseDownCanMoveWindow {
   return YES;
 }
 
 @end