✨ Minor cleanup of launching document tabs.

chrome/android/java/src/org/chromium/chrome/browser/document/DocumentMetricIds.java

Index: chrome/android/java/src/org/chromium/chrome/browser/document/DocumentMetricIds.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/document/DocumentMetricIds.java b/chrome/android/java/src/org/chromium/chrome/browser/document/DocumentMetricIds.java
deleted file mode 100644
index c0fee73e9a302eebb4db161442fe28677c939635..0000000000000000000000000000000000000000
--- a/chrome/android/java/src/org/chromium/chrome/browser/document/DocumentMetricIds.java
+++ /dev/null
@@ -1,39 +0,0 @@
-// 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.
-
-package org.chromium.chrome.browser.document;
-
-/**
- * IDs for metrics tracking Document-mode actions.
- */
-public class DocumentMetricIds {
-    // DocumentActivity.StartedBy (sparse)
-    public static final int STARTED_BY_UNKNOWN = 0;
-    public static final int STARTED_BY_LAUNCHER = 1;
-    public static final int STARTED_BY_ACTIVITY_RESTARTED = 2;
-    public static final int STARTED_BY_ACTIVITY_BROUGHT_TO_FOREGROUND = 3;
-    public static final int STARTED_BY_CHROME_HOME_MOST_VISITED = 100;
-    public static final int STARTED_BY_CHROME_HOME_BOOKMARK = 101;
-    public static final int STARTED_BY_CHROME_HOME_RECENT_TABS = 102;
-    public static final int STARTED_BY_WINDOW_OPEN = 200;
-    public static final int STARTED_BY_CONTEXT_MENU = 201;
-    public static final int STARTED_BY_OPTIONS_MENU = 202;
-    public static final int STARTED_BY_SEARCH_RESULT_PAGE = 300;
-    public static final int STARTED_BY_SEARCH_SUGGESTION_EXTERNAL = 301;
-    public static final int STARTED_BY_SEARCH_SUGGESTION_CHROME = 302;
-    // Please reserve 4xx for STARTED_BY_EXTERNAL_APP_
-    public static final int STARTED_BY_EXTERNAL_APP_GMAIL = 400;
-    public static final int STARTED_BY_EXTERNAL_APP_FACEBOOK = 401;
-    public static final int STARTED_BY_EXTERNAL_APP_PLUS = 402;
-    public static final int STARTED_BY_EXTERNAL_APP_TWITTER = 403;
-    public static final int STARTED_BY_EXTERNAL_APP_CHROME = 404;
-    public static final int STARTED_BY_EXTERNAL_APP_OTHER = 405;
-    public static final int STARTED_BY_EXTERNAL_APP_HANGOUTS = 406;
-    public static final int STARTED_BY_EXTERNAL_APP_MESSENGER = 407;
-    public static final int STARTED_BY_EXTERNAL_APP_NEWS = 408;
-    public static final int STARTED_BY_EXTERNAL_APP_LINE = 409;
-    public static final int STARTED_BY_EXTERNAL_APP_WHATSAPP = 410;
-    public static final int STARTED_BY_EXTERNAL_APP_GSA = 411;
-    public static final int STARTED_BY_CONTEXTUAL_SEARCH = 500;
-}