Fix poor seed for Android HW encoder picture ID randomization.

webrtc/sdk/android/src/jni/androidmediaencoder_jni.cc

 /*
  *  Copyright 2015 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.
  */
 
@@ skipping 357 matching lines @@
   j_info_buffer_field_ = GetFieldID(
       jni, j_output_buffer_info_class, "buffer", "Ljava/nio/ByteBuffer;");
   j_info_is_key_frame_field_ =
       GetFieldID(jni, j_output_buffer_info_class, "isKeyFrame", "Z");
   j_info_presentation_timestamp_us_field_ = GetFieldID(
       jni, j_output_buffer_info_class, "presentationTimestampUs", "J");
   if (CheckException(jni)) {
     ALOGW << "MediaCodecVideoEncoder ctor failed.";
     ProcessHWError(true /* reset_if_fallback_unavailable */);
   }
-  srand(time(NULL));
+  srand(rtc::Time32());
 }
 
 int32_t MediaCodecVideoEncoder::InitEncode(
     const webrtc::VideoCodec* codec_settings,
     int32_t /* number_of_cores */,
     size_t /* max_payload_size */) {
   RTC_DCHECK_CALLED_SEQUENTIALLY(&encoder_queue_checker_);
   if (codec_settings == NULL) {
     ALOGE << "NULL VideoCodec instance";
     return WEBRTC_VIDEO_CODEC_ERR_PARAMETER;
@@ skipping 959 matching lines @@
   }
 }
 
 void MediaCodecVideoEncoderFactory::DestroyVideoEncoder(
     webrtc::VideoEncoder* encoder) {
   ALOGD << "Destroy video encoder.";
   delete encoder;
 }
 
 }  // namespace webrtc_jni