Remove unnecassary parameter "sampleRate" for loadAudioResource().

content/renderer/media/audio_decoder.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/audio_decoder.h"
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/strings/string_util.h"
 #include "base/time/time.h"
 #include "media/base/audio_bus.h"
 #include "media/base/limits.h"
 #include "media/filters/audio_file_reader.h"
 #include "media/filters/in_memory_url_protocol.h"
 #include "third_party/WebKit/public/platform/WebAudioBus.h"
 
 using media::AudioBus;
 using media::AudioFileReader;
 using media::InMemoryUrlProtocol;
 using std::vector;
 using blink::WebAudioBus;
 
 namespace content {
 
 // Decode in-memory audio file data.
 bool DecodeAudioFileData(
     blink::WebAudioBus* destination_bus,
-    const char* data, size_t data_size, double sample_rate) {
+    const char* data, size_t data_size) {
   DCHECK(destination_bus);
   if (!destination_bus)
     return false;
 
   // Uses the FFmpeg library for audio file reading.
   InMemoryUrlProtocol url_protocol(reinterpret_cast<const uint8*>(data),
                                    data_size, false);
   AudioFileReader reader(&url_protocol);
 
   if (!reader.Open())
@@ skipping 45 matching lines @@
            << " data size: " << data_size
            << " duration: " << duration
            << " number of frames: " << actual_frames
            << " sample rate: " << file_sample_rate
            << " number of channels: " << number_of_channels;
 
   return actual_frames > 0;
 }
 
 }  // namespace content