Revert of Delete class ScopedPtrCollection. Replaced with vector of unique_ptr.

webrtc/base/BUILD.gn

 # Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 import("//build/config/crypto.gni")
 import("//build/config/ui.gni")
@@ skipping 490 matching lines @@
     sources += [
       "callback.h",
       "json.cc",
       "json.h",
       "logsinks.cc",
       "logsinks.h",
       "mathutils.h",
       "optionsfile.cc",
       "optionsfile.h",
       "rollingaccumulator.h",
+      "scopedptrcollection.h",
       "sslroots.h",
       "testbase64.h",
       "testclient.cc",
       "testclient.h",
       "transformadapter.cc",
       "transformadapter.h",
       "virtualsocketserver.cc",
       "virtualsocketserver.h",
       "window.h",
     ]
@@ skipping 340 matching lines @@
       "messagequeue_unittest.cc",
       "nat_unittest.cc",
       "network_unittest.cc",
       "optionsfile_unittest.cc",
       "proxy_unittest.cc",
       "ptr_util_unittest.cc",
       "ratelimiter_unittest.cc",
       "rollingaccumulator_unittest.cc",
       "rtccertificate_unittest.cc",
       "rtccertificategenerator_unittest.cc",
+      "scopedptrcollection_unittest.cc",
       "sha1digest_unittest.cc",
       "sharedexclusivelock_unittest.cc",
       "signalthread_unittest.cc",
       "sigslot_unittest.cc",
       "sigslottester_unittest.cc",
       "stream_unittest.cc",
       "testclient_unittest.cc",
       "thread_unittest.cc",
     ]
     if (is_win) {
@@ skipping 28 matching lines @@
 
 if (is_android) {
   android_library("base_java") {
     java_files = [
       "java/src/org/webrtc/Logging.java",
       "java/src/org/webrtc/Size.java",
       "java/src/org/webrtc/ThreadUtils.java",
     ]
   }
 }