Suppress findbugs warnings on Chromium for syncronized methods

customtabs/src/android/support/customtabs/CustomTabsClient.java

 /*
  * Copyright (C) 2015 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
@@ skipping 12 matching lines @@
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.net.Uri;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Looper;
 import android.os.RemoteException;
 import android.support.annotation.Nullable;
 import android.text.TextUtils;
 
+import org.chromium.base.annotations.SuppressFBWarnings;
+
 import java.util.ArrayList;
 import java.util.List;
 
 /**
  * Class to communicate with a {@link CustomTabsService} and create
  * {@link CustomTabsSession} from it.
  */
 public class CustomTabsClient {
     private final ICustomTabsService mService;
     private final ComponentName mServiceComponentName;
@@ skipping 145 matching lines @@
             public void onNavigationEvent(final int navigationEvent, final Bundle extras) {
                 if (callback == null) return;
                 mHandler.post(new Runnable() {
                     @Override
                     public void run() {
                         callback.onNavigationEvent(navigationEvent, extras);
                     }
                 });
             }
 
+            @SuppressFBWarnings("CHROMIUM_SYNCHRONIZED_METHOD")
             @Override
             public synchronized void onMessageChannelReady(final Uri origin, final Bundle extras) {
                 if (callback == null) return;
                 mHandler.post(new Runnable() {
                     @Override
                     public void run() {
                         callback.onMessageChannelReady(origin, extras);
                     }
                 });
             }
 
+            @SuppressFBWarnings("CHROMIUM_SYNCHRONIZED_METHOD")
             @Override
             public synchronized void onPostMessage(final String message, final Bundle extras) {
                 if (callback == null) return;
                 mHandler.post(new Runnable() {
                     @Override
                     public void run() {
                         callback.onPostMessage(message, extras);
                     }
                 });
             }
@@ skipping 20 matching lines @@
     }
 
     public Bundle extraCommand(String commandName, Bundle args) {
         try {
             return mService.extraCommand(commandName, args);
         } catch (RemoteException e) {
             return null;
         }
     }
 }