Merge java_staging/src into java/src.

chrome/android/java/src/org/chromium/chrome/browser/omaha/ExponentialBackoffScheduler.java

 // Copyright 2015 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.
 
 package org.chromium.chrome.browser.omaha;
 
 import android.app.AlarmManager;
 import android.app.PendingIntent;
 import android.content.Context;
 import android.content.Intent;
@@ skipping 177 matching lines @@
         int twoToThePowerOfN = 1 << n;
         return sRandom.nextInt(twoToThePowerOfN) + 1;
     }
 
     private SharedPreferences getSharedPreferences() {
         SharedPreferences preferences =
                 mContext.getSharedPreferences(mPreferencePackage, Context.MODE_PRIVATE);
         return preferences;
     }
 }