Rotate screen in response to accelerator or device orientation sensors.

athena/screen/public/screen_manager.h

 // Copyright 2014 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 ATHENA_SCREEN_PUBLIC_SCREEN_MANAGER_H_
 #define ATHENA_SCREEN_PUBLIC_SCREEN_MANAGER_H_
 
 #include <string>
 
 #include "athena/athena_export.h"
+#include "ui/gfx/display.h"
 
 namespace aura {
 class Window;
 }
 
 namespace gfx {
 class ImageSkia;
 }
 
 namespace ui {
@@ skipping 40 matching lines @@
 
   // Creates the container window on the screen.
   virtual aura::Window* CreateContainer(const ContainerParams& params) = 0;
 
   // Return the context object to be used for widget creation.
   virtual aura::Window* GetContext() = 0;
 
   // Sets the background image.
   virtual void SetBackgroundImage(const gfx::ImageSkia& image) = 0;
 
+  // Get/set screen rotation.
+  // TODO(flackr): Extract and use ash DisplayManager to get/set rotation
+  // instead: http://crbug.com/401044.
+  virtual gfx::Display::Rotation GetRotation() = 0;

[oshima, 2014/08/13 22:46:34]

can you change to use use gfx::Screen::GetPrimaryDisplay().rotation()

[flackr, 2014/08/14 17:29:51]

Do you mean in the implementation of this? Done. Or did you mean to call
directly to gfx::Screen::GetPrimaryDisplay().rotation() rather than call this
method here?

[oshima, 2014/08/14 19:28:53]

The latter. We already have an API to get display rotation, so we should use
that instead of adding new API.

[flackr, 2014/08/14 21:04:09]

Done.

+  virtual void SetRotation(gfx::Display::Rotation rotation) = 0;
+
   // Returns the LayerAnimator to use to animate the entire screen (e.g. fade
   // screen to white).
   virtual ui::LayerAnimator* GetScreenAnimator() = 0;
 
   // Create a focus rules.
   // TODO(oshima): Make this virtual function.
   static wm::FocusRules* CreateFocusRules();
 };
 
 }  // namespace athena
 
 #endif  // ATHENA_SCREEN_PUBLIC_SCREEN_MANAGER_H_