ui: Remove unneeded RegisterNatives() call on Android

ui/gfx/android/java_bitmap.cc

 // Copyright (c) 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.
 
 #include "ui/gfx/android/java_bitmap.h"
 
 #include <android/bitmap.h>
 
 #include "base/android/jni_string.h"
 #include "base/logging.h"
@@ skipping 19 matching lines @@
   format_ = info.format;
   stride_ = info.stride;
   byte_count_ = Java_BitmapHelper_getByteCount(AttachCurrentThread(), bitmap_);
 }
 
 JavaBitmap::~JavaBitmap() {
   int err = AndroidBitmap_unlockPixels(AttachCurrentThread(), bitmap_);
   DCHECK(!err);
 }
 
-// static
-bool JavaBitmap::RegisterJavaBitmap(JNIEnv* env) {
-  return RegisterNativesImpl(env);
-}
-
 static int SkColorTypeToBitmapFormat(SkColorType color_type) {
   switch (color_type) {
     case kAlpha_8_SkColorType:
       return BITMAP_FORMAT_ALPHA_8;
     case kARGB_4444_SkColorType:
       return BITMAP_FORMAT_ARGB_4444;
     case kN32_SkColorType:
       return BITMAP_FORMAT_ARGB_8888;
     case kRGB_565_SkColorType:
       return BITMAP_FORMAT_RGB_565;
@@ skipping 74 matching lines @@
       return kN32_SkColorType;
     case BITMAP_FORMAT_RGB_565:
       return kRGB_565_SkColorType;
     case BITMAP_FORMAT_NO_CONFIG:
     default:
       return kUnknown_SkColorType;
   }
 }
 
 }  //  namespace gfx