Add assertions that the empty Platform::cryptographicallyRandomValues() overrides are not being use…

media/blink/run_all_unittests.cc

Index: media/blink/run_all_unittests.cc
diff --git a/media/blink/run_all_unittests.cc b/media/blink/run_all_unittests.cc
index d84a1af06f15510ba62340eb25a07dba4f5985f6..684d3ac4d560905bbc2023ad5e1a1578a88a0fcb 100644
--- a/media/blink/run_all_unittests.cc
+++ b/media/blink/run_all_unittests.cc
@@ -4,6 +4,7 @@
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
+#include "base/rand_util.h"
 #include "base/test/launcher/unit_test_launcher.h"
 #include "base/test/test_suite.h"
 #include "build/build_config.h"
@@ -82,6 +83,7 @@ TestBlinkPlatformSupport::~TestBlinkPlatformSupport() {}
 void TestBlinkPlatformSupport::cryptographicallyRandomValues(
     unsigned char* buffer,
     size_t length) {
+  base::RandBytes(buffer, length);
 }
 
 const unsigned char* TestBlinkPlatformSupport::getTraceCategoryEnabledFlag(