[Android] Incorporate findbugs into android builds.

android_webview/glue/java/src/com/android/webview/chromium/WebViewContentsClientAdapter.java

 // Copyright 2014 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 com.android.webview.chromium;
 
 import android.content.Context;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.graphics.Canvas;
@@ skipping 28 matching lines @@
 
 import org.chromium.android_webview.AwContentsClient;
 import org.chromium.android_webview.AwContentsClientBridge;
 import org.chromium.android_webview.AwHttpAuthHandler;
 import org.chromium.android_webview.AwWebResourceResponse;
 import org.chromium.android_webview.JsPromptResultReceiver;
 import org.chromium.android_webview.JsResultReceiver;
 import org.chromium.android_webview.permission.AwPermissionRequest;
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.TraceEvent;
+import org.chromium.base.annotations.SuppressFBWarnings;
 import org.chromium.content.browser.ContentView;
 import org.chromium.content.browser.ContentViewClient;
 import org.chromium.content.browser.ContentViewCore;
 
 import java.lang.ref.WeakReference;
 import java.security.Principal;
 import java.security.PrivateKey;
 import java.security.cert.X509Certificate;
 import java.util.ArrayList;
 import java.util.HashMap;
@@ skipping 1137 matching lines @@
         public PermissionRequestAdapter(AwPermissionRequest awPermissionRequest) {
             assert awPermissionRequest != null;
             mAwPermissionRequest = awPermissionRequest;
         }
 
         @Override
         public Uri getOrigin() {
             return mAwPermissionRequest.getOrigin();
         }
 
+        @SuppressFBWarnings("CHROMIUM_SYNCHRONIZED_THIS")
         @Override
         public String[] getResources() {
             synchronized (this) {
                 if (mResources == null) {
                     mResources = toPermissionResources(mAwPermissionRequest.getResources());
                 }
                 return mResources;
             }
         }
 
         @Override
         public void grant(String[] resources) {
             long requestedResource = mAwPermissionRequest.getResources();
             if ((requestedResource & toAwPermissionResources(resources)) == requestedResource)
                 mAwPermissionRequest.grant();
             else
                 mAwPermissionRequest.deny();
         }
 
         @Override
         public void deny() {
             mAwPermissionRequest.deny();
         }
     }
 }