Change a number of SPDY unittests from http to https.

net/spdy/spdy_stream_unittest.cc

Index: net/spdy/spdy_stream_unittest.cc
diff --git a/net/spdy/spdy_stream_unittest.cc b/net/spdy/spdy_stream_unittest.cc
index 14c889d5ffb08ea5deb7f3abe19c87924c4fed6c..23e3c4c3812b0714b1583e72c5b669696f40340a 100644
--- a/net/spdy/spdy_stream_unittest.cc
+++ b/net/spdy/spdy_stream_unittest.cc
@@ -71,6 +71,7 @@ class SpdyStreamTest : public ::testing::Test,
       : spdy_util_(GetProtocol(), GetDependenciesFromPriority()),
         session_deps_(GetProtocol()),
         offset_(0) {
+    spdy_util_.set_default_url(GURL(kStreamUrl));
     session_deps_.enable_priority_dependencies = GetDependenciesFromPriority();
     session_ = SpdySessionDependencies::SpdyCreateSession(&session_deps_);
   }