Move Screen Rotation from MaximizeModeController to ScreenOrientationController

ui/accelerometer/accelerometer_types.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 UI_ACCELEROMETER_ACCELEROMETER_TYPES_H_
 #define UI_ACCELEROMETER_ACCELEROMETER_TYPES_H_
 
 #include "base/macros.h"
 #include "ui/accelerometer/ui_accelerometer_export.h"
 #include "ui/gfx/geometry/vector3d_f.h"
@@ skipping 47 matching lines @@
     return data_[source].reading;
   }
 
   void Set(AccelerometerSource source, float x, float y, float z) {
     data_[source].present = true;
     data_[source].reading.set_x(x);
     data_[source].reading.set_y(y);
     data_[source].reading.set_z(z);
   }
 
+  // A reading is considered stable if its deviation from gravity is small. This
+  // returns false if the deviation is too higher, or if |source| is not present
+  // in the update.
+  bool IsReadingStable(AccelerometerSource source) const;

[flackr, 2014/12/12 20:46:06]

I don't think this should be a part of the AccelerometerUpdate type. The
threshold is fairly specific to when/how we want to handle updates for maximize
mode and rotation checks.

[jonross, 2015/01/06 19:56:10]

Moved to chromeos/accelerometer/accelerometer_reader to be a helper method for
the ChromeOS specific use case.

+
  protected:
   AccelerometerReading data_[ACCELEROMETER_SOURCE_COUNT];
 
   DISALLOW_COPY_AND_ASSIGN(AccelerometerUpdate);
 };
 
 }  // namespace ui
 
 #endif  // UI_ACCELEROMETER_ACCELEROMETER_TYPES_H_