Replace scoped_ptr with unique_ptr in webrtc/base/

webrtc/base/httpbase.cc

Index: webrtc/base/httpbase.cc
diff --git a/webrtc/base/httpbase.cc b/webrtc/base/httpbase.cc
index 81ca4cceeb109aa19f8cf0410b8205ef3c10c395..7eb3e6cf0b86196f17c492aa95447acb1d27c021 100644
--- a/webrtc/base/httpbase.cc
+++ b/webrtc/base/httpbase.cc
@@ -8,6 +8,7 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
+#include <memory>
 
 #if defined(WEBRTC_WIN)
 #include "webrtc/base/win32.h"
@@ -271,7 +272,7 @@ public:
     // When the method returns, we restore the old document.  Ideally, we would
     // pass our StreamInterface* to DoReceiveLoop, but due to the callbacks
     // of HttpParser, we would still need to store the pointer temporarily.
-    scoped_ptr<StreamInterface>
+    std::unique_ptr<StreamInterface>
         stream(new BlockingMemoryStream(reinterpret_cast<char*>(buffer),
                                         buffer_len));