[Android WebView] Ensure we have user consent before uploading minidumps

android_webview/java/src/org/chromium/android_webview/crash/SynchronizedWebViewCommandLine.java

-// 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.
-
-package org.chromium.android_webview.crash;
-
-import org.chromium.base.CommandLine;
-import org.chromium.base.annotations.SuppressFBWarnings;
-
-/**
- * Class for fetching command line switches for WebView in a thread-safe way.
- */
-class SynchronizedWebViewCommandLine {
-    private static final Object sLock = new Object();
-    private static InitState sInitialized = InitState.NOT_STARTED;
-    // TODO(gsennton): this value is used in WebViewChromiumFactoryProvider as well - set it
-    // somewhere where it can be read from both classes.
-    private static final String WEBVIEW_COMMAND_LINE_FILE = "/data/local/tmp/webview-command-line";
-
-    private enum InitState { NOT_STARTED, STARTED, DONE }
-
-    /**
-     * Initialize the global CommandLine using the WebView command line file.
-     * This method includes IO operations - it shouldn't be performed on the main thread.
-     */
-    public static void initOnSeparateThread() {
-        synchronized (sLock) {
-            if (sInitialized != InitState.NOT_STARTED) return;
-            sInitialized = InitState.STARTED;
-        }
-        new Thread(new Runnable() {
-            @SuppressFBWarnings("DMI_HARDCODED_ABSOLUTE_FILENAME")
-            @Override
-            public void run() {
-                CommandLine.initFromFile(WEBVIEW_COMMAND_LINE_FILE);
-                synchronized (sLock) {
-                    sInitialized = InitState.DONE;
-                    sLock.notifyAll();
-                }
-            }
-        }, "WebView-command-line-init-thread").start();
-    }
-
-    /**
-     * Returns true if this command line contains the given switch.
-     */
-    public static boolean hasSwitch(String switchString) {
-        synchronized (sLock) {
-            while (sInitialized != InitState.DONE) {
-                try {
-                    sLock.wait();
-                } catch (InterruptedException e) {
-                    throw new RuntimeException(e);
-                }
-            }
-            return CommandLine.getInstance().hasSwitch(switchString);
-        }
-    }
-}