Move logic to figure out if a socket can be reused into HttpStream.

net/quic/quic_http_stream_test.cc

Index: net/quic/quic_http_stream_test.cc
diff --git a/net/quic/quic_http_stream_test.cc b/net/quic/quic_http_stream_test.cc
index 625b33b89db284c9175bc67bb705c375053088fc..43ad62b8098b2b01c8cdeb8409d52e25eccbc87e 100644
--- a/net/quic/quic_http_stream_test.cc
+++ b/net/quic/quic_http_stream_test.cc
@@ -340,14 +340,9 @@ TEST_P(QuicHttpStreamTest, RenewStreamForAuth) {
   EXPECT_EQ(nullptr, stream_->RenewStreamForAuth());
 }
 
-TEST_P(QuicHttpStreamTest, CanFindEndOfResponse) {
+TEST_P(QuicHttpStreamTest, CanReuseConnection) {
   Initialize();
-  EXPECT_TRUE(stream_->CanFindEndOfResponse());
-}
-
-TEST_P(QuicHttpStreamTest, IsConnectionReusable) {
-  Initialize();
-  EXPECT_FALSE(stream_->IsConnectionReusable());
+  EXPECT_FALSE(stream_->CanReuseConnection());
 }
 
 TEST_P(QuicHttpStreamTest, GetRequest) {