Initialize all wxHTTPStream members in ctor.

Don't leave m_httpsize and m_read_bytes uninitialized.

Closes #14993.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@73436 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/http.cpp

@@ -477,7 +477,13 @@ public:
     size_t m_httpsize;
     unsigned long m_read_bytes;
 
-    wxHTTPStream(wxHTTP *http) : wxSocketInputStream(*http), m_http(http) {}
+    wxHTTPStream(wxHTTP *http) : wxSocketInputStream(*http)
+    {
+        m_http = http;
+        m_httpsize = 0;
+        m_read_bytes = 0;
+    }
+
     size_t GetSize() const { return m_httpsize; }
     virtual ~wxHTTPStream(void) { m_http->Abort(); }