Remove most usages of guava.

chrome/android/java/src/org/chromium/chrome/browser/JavascriptAppModalDialog.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.chrome.browser;
 
 import android.app.AlertDialog;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.text.TextUtils;
 import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.CheckBox;
 import android.widget.EditText;
 import android.widget.TextView;
 
-import com.google.common.annotations.VisibleForTesting;
-
 import org.chromium.base.CalledByNative;
+import org.chromium.base.VisibleForTesting;
 import org.chromium.chrome.R;
 import org.chromium.ui.base.WindowAndroid;
 
 public class JavascriptAppModalDialog implements DialogInterface.OnClickListener {
     private static final String TAG = "JavascriptAppModalDialog";
 
     private final String mTitle;
     private final String mMessage;
     private final boolean mShouldShowSuppressCheckBox;
     private long mNativeDialogPointer;
@@ skipping 254 matching lines @@
     }
 
     private native void nativeDidAcceptAppModalDialog(long nativeJavascriptAppModalDialogAndroid,
             String prompt, boolean suppress);
 
     private native void nativeDidCancelAppModalDialog(long nativeJavascriptAppModalDialogAndroid,
             boolean suppress);
 
     private static native JavascriptAppModalDialog nativeGetCurrentModalDialog();
 }