By default ICS allows two syncs to run in parallel. Make it only

do one at a time for devices that don't have much RAM as
defined by the call ActivityManager.isLargeRAM()

Bug: 5713224
Change-Id: Ic8c42103f4031e1d7b1db797edcbbd7f7bac1387

Author: fredquintana

core/java/android/content/SyncManager.java

@@ -24,6 +24,7 @@
 import android.accounts.Account;
 import android.accounts.AccountManager;
 import android.accounts.OnAccountsUpdateListener;
+import android.app.ActivityManager;
 import android.app.AlarmManager;
 import android.app.Notification;
 import android.app.NotificationManager;
@@ -86,8 +87,13 @@ public class SyncManager implements OnAccountsUpdateListener {
     private static final long MAX_TIME_PER_SYNC;
 
     static {
-        MAX_SIMULTANEOUS_INITIALIZATION_SYNCS = SystemProperties.getInt("sync.max_init_syncs", 5);
-        MAX_SIMULTANEOUS_REGULAR_SYNCS = SystemProperties.getInt("sync.max_regular_syncs", 2);
+        final boolean isLargeRAM = ActivityManager.isLargeRAM();
+        int defaultMaxInitSyncs = isLargeRAM ? 5 : 2;
+        int defaultMaxRegularSyncs = isLargeRAM ? 2 : 1;
+        MAX_SIMULTANEOUS_INITIALIZATION_SYNCS =
+                SystemProperties.getInt("sync.max_init_syncs", defaultMaxInitSyncs);
+        MAX_SIMULTANEOUS_REGULAR_SYNCS =
+                SystemProperties.getInt("sync.max_regular_syncs", defaultMaxRegularSyncs);
         LOCAL_SYNC_DELAY =
                 SystemProperties.getLong("sync.local_sync_delay", 30 * 1000 /* 30 seconds */);
         MAX_TIME_PER_SYNC =