Rewrite scoped_ptr<T>(NULL) to use the default ctor in content/.

content/browser/speech/google_streaming_remote_engine.cc

Index: content/browser/speech/google_streaming_remote_engine.cc
diff --git a/content/browser/speech/google_streaming_remote_engine.cc b/content/browser/speech/google_streaming_remote_engine.cc
index a1ea574d7c7e0b23b61a6afdb6cf2f451c2e1734..8097907afcea7eee9add7ae416a402c4b57f562e 100644
--- a/content/browser/speech/google_streaming_remote_engine.cc
+++ b/content/browser/speech/google_streaming_remote_engine.cc
@@ -94,12 +94,10 @@ const int GoogleStreamingRemoteEngine::kWebserviceStatusErrorNoMatch = 5;
 GoogleStreamingRemoteEngine::GoogleStreamingRemoteEngine(
     net::URLRequestContextGetter* context)
     : url_context_(context),
-      encoder_(NULL),
       previous_response_length_(0),
       got_last_definitive_result_(false),
       is_dispatching_event_(false),
-      state_(STATE_IDLE) {
-}
+      state_(STATE_IDLE) {}
 
 GoogleStreamingRemoteEngine::~GoogleStreamingRemoteEngine() {}