Revert of Upstream ChromeMobileApplication bits about sync browser initialization

chrome/android/java/src/org/chromium/chrome/browser/ChromeCommandLineInitUtil.java

-// Copyright 2015 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;
-
-import android.annotation.SuppressLint;
-import android.content.Context;
-import android.os.Build;
-import android.provider.Settings;
-import android.util.Log;
-
-import org.chromium.base.CommandLine;
-
-import java.io.File;
-
-/**
- * Provides implementation of command line initialization for Chrome for Android.
- */
-public final class ChromeCommandLineInitUtil {
-
-    private static final String TAG = "ChromeCommandLineInitUtil";
-
-    /**
-     * The location of the command line file needs to be in a protected
-     * directory so requires root access to be tweaked, i.e., no other app in a
-     * regular (non-rooted) device can change this file's contents.
-     * See below for debugging on a regular (non-rooted) device.
-     */
-    private static final String COMMAND_LINE_FILE_PATH = "/data/local";
-
-    /**
-     * This path (writable by the shell in regular non-rooted "user" builds) is used when:
-     * 1) The "debug app" is set to chrome
-     * and
-     * 2) ADB is enabled.
-     *
-     */
-    private static final String COMMAND_LINE_FILE_PATH_DEBUG_APP = "/data/local/tmp";
-    private static final String COMMAND_LINE_FILE = "chrome-command-line";
-
-    private ChromeCommandLineInitUtil() {
-    }
-
-    public static void initChromeCommandLine(Context context) {
-        if (!CommandLine.isInitialized()) {
-            File commandLineFile = getAlternativeCommandLinePath(context);
-            if (commandLineFile == null) {
-                commandLineFile = new File(COMMAND_LINE_FILE_PATH, COMMAND_LINE_FILE);
-            }
-            CommandLine.initFromFile(commandLineFile.getPath());
-        }
-    }
-
-    /**
-     * Use an alternative path if adb is enabled and the debug app is chrome.
-     */
-    private static File getAlternativeCommandLinePath(Context context) {
-        File alternativeCommandLineFile =
-                new File(COMMAND_LINE_FILE_PATH_DEBUG_APP, COMMAND_LINE_FILE);
-        if (!alternativeCommandLineFile.exists()) return null;
-        try {
-            String debugApp = Build.VERSION.SDK_INT < 17
-                    ? getDebugAppPreJBMR1(context) : getDebugAppJBMR1(context);
-
-            if (debugApp != null
-                    && debugApp.equals(context.getApplicationContext().getPackageName())) {
-                Log.i(TAG, "Using alternative command line file in "
-                        + alternativeCommandLineFile.getPath());
-                return alternativeCommandLineFile;
-            }
-        } catch (RuntimeException e) {
-            Log.e(TAG, "Unable to detect alternative command line file");
-        }
-
-        return null;
-    }
-
-    @SuppressLint("NewApi")
-    private static String getDebugAppJBMR1(Context context) {
-        boolean adbEnabled = Settings.Global.getInt(context.getContentResolver(),
-                Settings.Global.ADB_ENABLED, 0) == 1;
-        if (adbEnabled) {
-            return Settings.Global.getString(context.getContentResolver(),
-                    Settings.Global.DEBUG_APP);
-        }
-        return null;
-    }
-
-    @SuppressWarnings("deprecation")
-    private static String getDebugAppPreJBMR1(Context context) {
-        boolean adbEnabled = Settings.System.getInt(context.getContentResolver(),
-                Settings.System.ADB_ENABLED, 0) == 1;
-        if (adbEnabled) {
-            return Settings.System.getString(context.getContentResolver(),
-                    Settings.System.DEBUG_APP);
-        }
-        return null;
-    }
-}