Move Screen Rotation from MaximizeModeController to ScreenOrientationController

chromeos/accelerometer/accelerometer_reader.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 CHROMEOS_ACCELEROMETER_ACCELEROMETER_READER_H_
 #define CHROMEOS_ACCELEROMETER_ACCELEROMETER_READER_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
@@ skipping 45 matching lines @@
 
   AccelerometerReader();
   ~AccelerometerReader();
 
   void Initialize(scoped_refptr<base::TaskRunner> blocking_task_runner);
 
   // Add/Remove observers.
   void AddObserver(Observer* observer);
   void RemoveObserver(Observer* observer);
 
+  // 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.
+  static bool IsReadingStable(const ui::AccelerometerUpdate& update,
+                              ui::AccelerometerSource source);
+
  private:
   // Dispatched when initialization is complete. If |success|, |configuration|
   // provides the details of the detected accelerometer.
   void OnInitialized(scoped_refptr<Configuration> configuration, bool success);
 
   // Triggers an asynchronous read from the accelerometer, signalling
   // OnDataRead with the result.
   void TriggerRead();
 
   // If |success|, converts the raw reading to an AccelerometerUpdate
@@ skipping 13 matching lines @@
   ObserverList<Observer, true> observers_;
 
   base::WeakPtrFactory<AccelerometerReader> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AccelerometerReader);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_ACCELEROMETER_ACCELEROMETER_READER_H_