Always round up to the next full frame when sizing WebAudio decodes.

media/filters/audio_file_reader.h

Index: media/filters/audio_file_reader.h
diff --git a/media/filters/audio_file_reader.h b/media/filters/audio_file_reader.h
index e345dc05808f0ea9051414d71595efb79b2766bf..8a4ed276832388ae0462fbcde6aaa9f464fa82ba 100644
--- a/media/filters/audio_file_reader.h
+++ b/media/filters/audio_file_reader.h
@@ -28,7 +28,7 @@ class MEDIA_EXPORT AudioFileReader {
   virtual ~AudioFileReader();
 
   // Open() reads the audio data format so that the sample_rate(),
-  // channels(), duration(), and number_of_frames() methods can be called.
+  // channels(), GetDuration(), and GetNumberOfFrames() methods can be called.
   // It returns |true| on success.
   bool Open();
   void Close();
@@ -46,12 +46,13 @@ class MEDIA_EXPORT AudioFileReader {
   int channels() const { return channels_; }
   int sample_rate() const { return sample_rate_; }
 
-  // Please note that duration() and number_of_frames() attempt to be accurate,
-  // but are only estimates.  For some encoded formats, the actual duration
-  // of the file can only be determined once all the file data has been read.
-  // The Read() method returns the actual number of sample-frames it has read.
-  base::TimeDelta duration() const;
-  int64 number_of_frames() const;
+  // Please note that GetDuration() and GetNumberOfFrames() attempt to be
+  // accurate, but are only estimates.  For some encoded formats, the actual
+  // duration of the file can only be determined once all the file data has been
+  // read. The Read() method returns the actual number of sample-frames it has
+  // read.
+  base::TimeDelta GetDuration() const;
+  int GetNumberOfFrames() const;
 
  private:
   scoped_ptr<FFmpegGlue> glue_;