Change a number of SPDY unittests from http to https.

net/spdy/spdy_http_stream_unittest.cc

Index: net/spdy/spdy_http_stream_unittest.cc
diff --git a/net/spdy/spdy_http_stream_unittest.cc b/net/spdy/spdy_http_stream_unittest.cc
index caf0cc251353a020d5a7119a0b2f722478796d26..3039de8abd76cc4405bca680244e4e7d763e23d3 100644
--- a/net/spdy/spdy_http_stream_unittest.cc
+++ b/net/spdy/spdy_http_stream_unittest.cc
@@ -116,6 +116,7 @@ class SpdyHttpStreamTest : public testing::Test,
         session_deps_(GetProtocol()) {
     session_deps_.enable_priority_dependencies = GetDependenciesFromPriority();
     session_deps_.net_log = &net_log_;
+    spdy_util_.set_default_url(GURL("http://www.example.org/"));
   }
 
   ~SpdyHttpStreamTest() {}