Rewrote the PRNG using an xorshift* algorithm and moved the files from test/ to base/.

webrtc/modules/rtp_rtcp/source/rtcp_packet/report_block_unittest.cc

Index: webrtc/modules/rtp_rtcp/source/rtcp_packet/report_block_unittest.cc
diff --git a/webrtc/modules/rtp_rtcp/source/rtcp_packet/report_block_unittest.cc b/webrtc/modules/rtp_rtcp/source/rtcp_packet/report_block_unittest.cc
index fcde0e4c17d7ef68ed9be05cf7c58ee915c38006..85bbb404a4401abcaf91aff92b0979ff5961a42d 100644
--- a/webrtc/modules/rtp_rtcp/source/rtcp_packet/report_block_unittest.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtcp_packet/report_block_unittest.cc
@@ -13,7 +13,7 @@
 #include <limits>
 
 #include "testing/gtest/include/gtest/gtest.h"
-#include "webrtc/test/random.h"
+#include "webrtc/base/random.h"
 
 using webrtc::rtcp::ReportBlock;
 
@@ -42,7 +42,7 @@ TEST(RtcpPacketReportBlockTest, ParseChecksLength) {
 TEST(RtcpPacketReportBlockTest, ParseAnyData) {
   uint8_t buffer[kBufferLength];
   // Fill buffer with semi-random data.
-  test::Random generator(testing::FLAGS_gtest_random_seed);
+  Random generator(0x256F8A285EC829ull);
   for (size_t i = 0; i < kBufferLength; ++i)
     buffer[i] = static_cast<uint8_t>(generator.Rand(0, 0xff));