Add IsCurrentlyLowMemory

base/android/java/src/org/chromium/base/SysUtils.java

Index: base/android/java/src/org/chromium/base/SysUtils.java
diff --git a/base/android/java/src/org/chromium/base/SysUtils.java b/base/android/java/src/org/chromium/base/SysUtils.java
index e86bd4592ec5252808621cab99fcd08368a09a0c..5979ca40008847682a29fa20bec60830bd13033d 100644
--- a/base/android/java/src/org/chromium/base/SysUtils.java
+++ b/base/android/java/src/org/chromium/base/SysUtils.java
@@ -4,6 +4,7 @@
 
 package org.chromium.base;
 
+import android.app.ActivityManager;
 import android.content.Context;
 import android.content.pm.PackageManager;
 import android.os.Build;
@@ -103,6 +104,19 @@ public class SysUtils {
         return sLowEndDevice.booleanValue();
     }
 
+    /**
+     * @return Whether or not the system has low available memory.
+     */
+    @CalledByNative
+    private static boolean isCurrentlyLowMemory() {
+        ActivityManager am =
+                (ActivityManager) ContextUtils.getApplicationContext().getSystemService(
+                        Context.ACTIVITY_SERVICE);
+        ActivityManager.MemoryInfo info = new ActivityManager.MemoryInfo();
+        am.getMemoryInfo(info);
+        return info.lowMemory;
+    }
+
     /**
      * Resets the cached value, if any.
      */