Cleanup: Remove unused ui::ResourceBundle::ImageRTL

ui/base/resource/resource_bundle_android.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/base/resource/resource_bundle_android.h"
 
 #include "base/android/apk_assets.h"
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/logging.h"
@@ skipping 102 matching lines @@
                               logging::GetLastSystemErrorCode(), 16000);
     LOG(ERROR) << "failed to load locale.pak";
     NOTREACHED();
     return std::string();
   }
 
   locale_resources_data_.reset(data_pack.release());
   return app_locale;
 }
 
-gfx::Image& ResourceBundle::GetNativeImageNamed(int resource_id, ImageRTL rtl) {
-  // Flipped image is not used on Android.
-  DCHECK_EQ(rtl, RTL_DISABLED);
+gfx::Image& ResourceBundle::GetNativeImageNamed(int resource_id) {
   return GetImageNamed(resource_id);
 }
 
 void SetLocalePaksStoredInApk(bool value) {
   g_locale_paks_in_apk = value;
 }
 
 void LoadMainAndroidPackFile(const char* path_within_apk,
                              const base::FilePath& disk_file_path) {
   if (LoadFromApkOrFile(path_within_apk,
@@ skipping 33 matching lines @@
     return std::string();
   }
   return base::android::ConvertJavaStringToUTF8(env, ret.obj());
 }
 
 bool RegisterResourceBundleAndroid(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace ui