[Android] Incorporate findbugs into android builds.

android_webview/java/src/org/chromium/android_webview/AwContents.java

 // Copyright 2012 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 org.chromium.android_webview;
 
 import android.annotation.SuppressLint;
 import android.app.Activity;
 import android.content.ComponentCallbacks2;
 import android.content.Context;
@@ skipping 28 matching lines @@
 import android.webkit.JavascriptInterface;
 import android.webkit.ValueCallback;
 import android.widget.OverScroller;
 
 import org.chromium.android_webview.permission.AwPermissionRequest;
 import org.chromium.base.CalledByNative;
 import org.chromium.base.JNINamespace;
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.TraceEvent;
 import org.chromium.base.VisibleForTesting;
+import org.chromium.base.annotations.SuppressFBWarnings;
 import org.chromium.components.navigation_interception.InterceptNavigationDelegate;
 import org.chromium.components.navigation_interception.NavigationParams;
 import org.chromium.content.browser.ContentViewClient;
 import org.chromium.content.browser.ContentViewCore;
 import org.chromium.content.browser.ContentViewStatics;
 import org.chromium.content.browser.SmartClipProvider;
 import org.chromium.content.common.CleanupReference;
 import org.chromium.content_public.browser.GestureStateListener;
 import org.chromium.content_public.browser.JavaScriptCallback;
 import org.chromium.content_public.browser.LoadUrlParams;
@@ skipping 2356 matching lines @@
         // (see synchronous_compositor_impl.cc and crbug/452530).
         mHandler.post(new Runnable() {
             @Override
             public void run() {
                 callback.onComplete(requestId);
             }
         });
     }
 
     // Called as a result of nativeUpdateLastHitTestData.
+    @SuppressFBWarnings("URF_UNREAD_PUBLIC_OR_PROTECTED_FIELD")
     @CalledByNative
     private void updateHitTestData(
             int type, String extra, String href, String anchorText, String imgSrc) {
         mPossiblyStaleHitTestData.hitTestResultType = type;
         mPossiblyStaleHitTestData.hitTestResultExtraData = extra;
         mPossiblyStaleHitTestData.href = href;
         mPossiblyStaleHitTestData.anchorText = anchorText;
         mPossiblyStaleHitTestData.imgSrc = imgSrc;
     }
 
@@ skipping 558 matching lines @@
     private native void nativeCreatePdfExporter(long nativeAwContents, AwPdfExporter awPdfExporter);
 
     private native void nativePreauthorizePermission(long nativeAwContents, String origin,
             long resources);
 
     private native void nativePostMessageToFrame(long nativeAwContents, String frameId,
             String message, String targetOrigin, int[] msgPorts);
 
     private native void nativeCreateMessageChannel(long nativeAwContents, AwMessagePort[] ports);
 }