Make UTF16ToASCII and UTF16TOUTF8 take a StringPiece

content/renderer/media/android/webmediaplayer_android.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/media/android/webmediaplayer_android.h"
 
 #include <limits>
 
 #include "base/android/build_info.h"
 #include "base/bind.h"
@@ skipping 1425 matching lines @@
 }
 #endif
 
 // The following EME related code is copied from WebMediaPlayerImpl.
 // TODO(xhwang): Remove duplicate code between WebMediaPlayerAndroid and
 // WebMediaPlayerImpl.
 
 // Convert a WebString to ASCII, falling back on an empty string in the case
 // of a non-ASCII string.
 static std::string ToASCIIOrEmpty(const blink::WebString& string) {
-  return base::IsStringASCII(string) ? base::UTF16ToASCII(string)
-                                     : std::string();
+  return base::IsStringASCII(string)
+      ? base::UTF16ToASCII(base::StringPiece16(string))
+      : std::string();
 }
 
 // Helper functions to report media EME related stats to UMA. They follow the
 // convention of more commonly used macros UMA_HISTOGRAM_ENUMERATION and
 // UMA_HISTOGRAM_COUNTS. The reason that we cannot use those macros directly is
 // that UMA_* macros require the names to be constant throughout the process'
 // lifetime.
 
 static void EmeUMAHistogramEnumeration(const std::string& key_system,
                                        const std::string& method,
@@ skipping 431 matching lines @@
 
   bool is_hls = IsHLSStream();
   UMA_HISTOGRAM_BOOLEAN("Media.Android.IsHttpLiveStreamingMedia", is_hls);
   if (is_hls) {
     media::RecordOriginOfHLSPlayback(
         GURL(frame_->document().securityOrigin().toString()));
   }
 }
 
 }  // namespace content