Update uses of UTF conversions in content/ to use the base:: namespace.

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 b6b68d17ced6e56691ba4f45547aaf959477021e..a8d034a9bffce38336a32c47d11a2a5461938b3c 100644
--- a/content/browser/speech/google_streaming_remote_engine.cc
+++ b/content/browser/speech/google_streaming_remote_engine.cc
@@ -455,7 +455,7 @@ GoogleStreamingRemoteEngine::ProcessDownstreamResponse(
       DCHECK(ws_alternative.has_transcript());
       // TODO(hans): Perhaps the transcript should be required in the proto?
       if (ws_alternative.has_transcript())
-        hypothesis.utterance = UTF8ToUTF16(ws_alternative.transcript());
+        hypothesis.utterance = base::UTF8ToUTF16(ws_alternative.transcript());
 
       result.hypotheses.push_back(hypothesis);
     }