Import Cronet version 121.0.6103.2

FolderOrigin-RevId: /tmp/copybara-origin/src
Change-Id: I690becfaba7ad4293eba08b4f9d1aa7f953fce20
diff --git a/base/atomicops_unittest.cc b/base/atomicops_unittest.cc
index d75651d7..b494bd1 100644
--- a/base/atomicops_unittest.cc
+++ b/base/atomicops_unittest.cc
@@ -177,7 +177,7 @@
 
   AtomicType value;
 
-  if constexpr (std::is_same<AtomicType, base::subtle::Atomic32>::value) {
+  if constexpr (std::is_same_v<AtomicType, base::subtle::Atomic32>) {
     base::subtle::NoBarrier_Store(&value, kVal1);
     EXPECT_EQ(kVal1, value);
     base::subtle::NoBarrier_Store(&value, kVal2);