Renamed FilterHost::Error() and Pipeline::GetTime() to more appropriate names.

media/filters/ffmpeg_audio_decoder.cc

Index: media/filters/ffmpeg_audio_decoder.cc
diff --git a/media/filters/ffmpeg_audio_decoder.cc b/media/filters/ffmpeg_audio_decoder.cc
index edb7a02b5915eaf8d86ed802697a1aa3b5e965d5..048d93d9a96372616d9162bd7b301a65be0a50aa 100644
--- a/media/filters/ffmpeg_audio_decoder.cc
+++ b/media/filters/ffmpeg_audio_decoder.cc
@@ -67,7 +67,7 @@ bool FFmpegAudioDecoder::OnInitialize(DemuxerStream* demuxer_stream) {
   // Prepare the output buffer.
   output_buffer_.reset(static_cast<uint8*>(av_malloc(kOutputBufferSize)));
   if (!output_buffer_.get()) {
-    host()->Error(PIPELINE_ERROR_OUT_OF_MEMORY);
+    host()->SetError(PIPELINE_ERROR_OUT_OF_MEMORY);
     return false;
   }
   return true;
@@ -101,7 +101,7 @@ void FFmpegAudioDecoder::OnDecode(Buffer* input) {
   if (result < 0 ||
       output_buffer_size < 0 ||
       static_cast<size_t>(output_buffer_size) > kOutputBufferSize) {
-    host()->Error(PIPELINE_ERROR_DECODE);
+    host()->SetError(PIPELINE_ERROR_DECODE);
     return;
   }