Merge "Fix binder force gc will block binder thread" into mnc-dev

core/java/com/android/internal/os/BinderInternal.java

@@ -20,6 +20,8 @@ import android.os.IBinder;
 import android.os.SystemClock;
 import android.util.EventLog;
 
+import dalvik.system.VMRuntime;
+
 import java.lang.ref.WeakReference;
 import java.util.ArrayList;
 
@@ -96,7 +98,7 @@ public class BinderInternal {
     
     public static void forceGc(String reason) {
         EventLog.writeEvent(2741, reason);
-        Runtime.getRuntime().gc();
+        VMRuntime.getRuntime().requestConcurrentGC();
     }
     
     static void forceBinderGc() {