Introduce moderate binding

content/public/android/java/src/org/chromium/content/browser/BindingManager.java

 // Copyright 2013 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.content.browser;
 
+import android.content.Context;
+
 /**
  * Manages oom bindings used to bound child services. "Oom binding" is a binding that raises the
  * process oom priority so that it shouldn't be killed by the OS out-of-memory killer under
  * normal conditions (it can still be killed under drastic memory pressure). ChildProcessConnections
  * have two oom bindings: initial binding and strong binding.
  *
  * BindingManager receives calls that signal status of each service (setInForeground(),
  * determinedVisibility()) and the entire embedding application (onSentToBackground(),
  * onBroughtToForeground()) and manipulates child process bindings accordingly.
  *
@@ skipping 56 matching lines @@
      * renderer was a crash or a probable out-of-memory kill. This can be called on any thread.
      */
     boolean isOomProtected(int pid);
 
     /**
      * Should be called when the connection to the child process goes away (either after a clean
      * exit or an unexpected crash). At this point we let go of the reference to the
      * ChildProcessConnection. This can be called on any thread.
      */
     void clearConnection(int pid);
+
+    /**
+     * Starts moderate binding management.
+     * Please see https://goo.gl/tl9MQm for details.
+     */
+    void startModerateBindingManagement(
+            Context context, int maxSize, float lowReduceRatio, float highReduceRatio);
 }