ui: Remove unneeded RegisterNatives() call on Android

ui/events/android/motion_event_android.h

 
 // 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.
 
 #ifndef UI_EVENTS_ANDROID_MOTION_EVENT_ANDROID_H_
 #define UI_EVENTS_ANDROID_MOTION_EVENT_ANDROID_H_
 
 #include <jni.h>
 #include <stddef.h>
@@ skipping 74 matching lines @@
   float GetHistoricalTouchMajor(size_t pointer_index,
                                 size_t historical_index) const override;
   float GetHistoricalX(size_t pointer_index,
                        size_t historical_index) const override;
   float GetHistoricalY(size_t pointer_index,
                        size_t historical_index) const override;
   ToolType GetToolType(size_t pointer_index) const override;
   int GetButtonState() const override;
   int GetFlags() const override;
 
-  static bool RegisterMotionEventAndroid(JNIEnv* env);
-
  private:
   struct CachedPointer;
 
   float ToDips(float pixels) const;
   CachedPointer FromAndroidPointer(const Pointer& pointer) const;
 
   // Cache pointer coords, id's and major lengths for the most common
   // touch-related scenarios, i.e., scrolling and pinching.  This prevents
   // redundant JNI fetches for the same bits.
   enum { MAX_POINTERS_TO_CACHE = 2 };
@@ skipping 26 matching lines @@
 
   // A unique identifier for the Android motion event.
   const uint32_t unique_event_id_;
 
   DISALLOW_COPY_AND_ASSIGN(MotionEventAndroid);
 };
 
 }  // namespace content
 
 #endif  // UI_EVENTS_ANDROID_MOTION_EVENT_ANDROID_H_