Update from https://crrev.com/328418

base/android/java/src/org/chromium/base/PathUtils.java

 // Copyright 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.
 
 package org.chromium.base;
 
 import android.content.Context;
 import android.content.pm.ApplicationInfo;
 import android.os.AsyncTask;
 import android.os.Environment;
@@ skipping 23 matching lines @@
      */
     public static void setPrivateDataDirectorySuffix(String suffix, Context context) {
         final Context appContext = context.getApplicationContext();
         sDirPathFetchTask = new AsyncTask<String, Void, String[]>() {
             @Override
             protected String[] doInBackground(String... dataDirectorySuffix) {
                 String[] paths = new String[NUM_DIRECTORIES];
                 paths[DATA_DIRECTORY] =
                         appContext.getDir(dataDirectorySuffix[0], Context.MODE_PRIVATE).getPath();
                 paths[DATABASE_DIRECTORY] = appContext.getDatabasePath("foo").getParent();
-                paths[CACHE_DIRECTORY] = appContext.getCacheDir().getPath();
+                // TODO(wnwen): Find a way to avoid calling this function in renderer process.
+                if (appContext.getCacheDir() != null) {
+                    paths[CACHE_DIRECTORY] = appContext.getCacheDir().getPath();
+                }
                 return paths;
             }
         }.executeOnExecutor(AsyncTask.SERIAL_EXECUTOR, suffix);
     }
 
     /**
      * @param index The index of the cached directory path.
      * @return The directory path requested, or null if not available.
      */
     private static String getDirectoryPath(int index) {
@@ skipping 60 matching lines @@
 
     /**
      * @return the external storage directory.
      */
     @SuppressWarnings("unused")
     @CalledByNative
     public static String getExternalStorageDirectory() {
         return Environment.getExternalStorageDirectory().getAbsolutePath();
     }
 }