Android: Remove unneeded RegisterNatives() calls

components/web_contents_delegate_android/validation_message_bubble_android.h

 // Copyright 2013 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.
 
 #ifndef COMPONENTS_WEB_CONTENTS_DELEGATE_ANDROID_VALIDATION_MESSAGE_BUBBLE_ANDROID_H_
 #define COMPONENTS_WEB_CONTENTS_DELEGATE_ANDROID_VALIDATION_MESSAGE_BUBBLE_ANDROID_H_
 
 #include <jni.h>
 
 #include "base/android/scoped_java_ref.h"
@@ skipping 15 matching lines @@
  public:
   ValidationMessageBubbleAndroid(content::RenderWidgetHost* widget_host,
                                  const gfx::Rect& anchor_in_screen,
                                  const base::string16& main_text,
                                  const base::string16& sub_text);
   virtual ~ValidationMessageBubbleAndroid();
   virtual void SetPositionRelativeToAnchor(
       content::RenderWidgetHost* widget_host,
       const gfx::Rect& anchor_in_screen);
 
-  static bool Register(JNIEnv* env);
-
  private:
   base::android::ScopedJavaGlobalRef<jobject> java_validation_message_bubble_;
 };
 
 }  // namespace web_contents_delegate_android
 
 #endif  // COMPONENTS_WEB_CONTENTS_DELEGATE_ANDROID_VALIDATION_MESSAGE_BUBBLE_ANDROID_H_