Create a sub direcory for translate custom views.

chrome/android/java_sources.gni

 # Copyright 2016 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.
 
 chrome_java_sources = [
   "java/src/com/google/android/apps/chrome/appwidget/bookmarks/BookmarkThumbnailWidgetProvider.java",
   "java/src/org/chromium/chrome/browser/ActivityTabTaskDescriptionHelper.java",
   "java/src/org/chromium/chrome/browser/ActivityTaskDescriptionIconGenerator.java",
   "java/src/org/chromium/chrome/browser/AfterStartupTaskUtils.java",
   "java/src/org/chromium/chrome/browser/ApplicationInitialization.java",
@@ skipping 447 matching lines @@
   "java/src/org/chromium/chrome/browser/infobar/SubresourceFilterInfoBar.java",
   "java/src/org/chromium/chrome/browser/infobar/SubPanelListener.java",
   "java/src/org/chromium/chrome/browser/infobar/TranslateAlwaysPanel.java",
   "java/src/org/chromium/chrome/browser/infobar/TranslateCompactInfoBar.java",
   "java/src/org/chromium/chrome/browser/infobar/TranslateInfoBar.java",
   "java/src/org/chromium/chrome/browser/infobar/TranslateLanguagePanel.java",
   "java/src/org/chromium/chrome/browser/infobar/TranslateNeverPanel.java",
   "java/src/org/chromium/chrome/browser/infobar/TranslateOptions.java",
   "java/src/org/chromium/chrome/browser/infobar/TranslateSubPanel.java",
   "java/src/org/chromium/chrome/browser/infobar/UpdatePasswordInfoBar.java",
+  "java/src/org/chromium/chrome/browser/infobar/translate/TranslateTabLayout.java",
   "java/src/org/chromium/chrome/browser/init/AsyncInitializationActivity.java",
   "java/src/org/chromium/chrome/browser/init/AsyncInitTaskRunner.java",
   "java/src/org/chromium/chrome/browser/init/BrowserParts.java",
   "java/src/org/chromium/chrome/browser/init/ChromeActivityNativeDelegate.java",
   "java/src/org/chromium/chrome/browser/init/ChromeBrowserInitializer.java",
   "java/src/org/chromium/chrome/browser/init/ChromeLifetimeController.java",
   "java/src/org/chromium/chrome/browser/init/EmptyBrowserParts.java",
   "java/src/org/chromium/chrome/browser/init/InvalidStartupDialog.java",
   "java/src/org/chromium/chrome/browser/init/NativeInitializationController.java",
   "java/src/org/chromium/chrome/browser/init/ProcessInitializationHandler.java",
@@ skipping 1179 matching lines @@
   "sync_shell/javatests/src/org/chromium/chrome/browser/sync/SyncTestBase.java",
   "sync_shell/javatests/src/org/chromium/chrome/browser/sync/TypedUrlsTest.java",
   "sync_shell/javatests/src/org/chromium/chrome/browser/sync/ui/PassphraseTypeDialogFragmentTest.java",
 ]
 
 # Only used for testing, should not be shipped to end users.
 if (!is_official_build) {
   chrome_java_sources += [ "java/src/org/chromium/chrome/browser/offlinepages/evaluation/OfflinePageEvaluationBridge.java" ]
   chrome_test_java_sources += [ "javatests/src/org/chromium/chrome/browser/offlinepages/OfflinePageSavePageLaterEvaluationTest.java" ]
 }