Convert base::Bind and base::Callback in //media/muxers/ to Once or Repeating

This CL converts base::Bind and base::Callback in //media/muxers/ to
Once or Repeating

Bug: 1007809
Change-Id: I9d412676b0c9386de89d400e2126af2e20745821
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2065333Reviewed-by: Miguel Casas <mcasas@chromium.org>
Commit-Queue: Jun Cai <juncai@chromium.org>
Cr-Commit-Position: refs/heads/master@{#743152}

media/muxers/webm_muxer.h

@@ -48,7 +48,7 @@ class MEDIA_EXPORT WebmMuxer : public mkvmuxer::IMkvWriter {
  public:
   // Callback to be called when WebmMuxer is ready to write a chunk of data,
   // either any file header or a SingleBlock.
-  using WriteDataCB = base::Callback<void(base::StringPiece)>;
+  using WriteDataCB = base::RepeatingCallback<void(base::StringPiece)>;
 
   // Container for the parameters that muxer uses that is extracted from
   // media::VideoFrame.

media/muxers/webm_muxer_fuzzertest.cc

@@ -59,7 +59,8 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
     const auto audio_codec = static_cast<media::AudioCodec>(
         kSupportedAudioCodecs[rng() % base::size(kSupportedAudioCodecs)]);
     media::WebmMuxer muxer(audio_codec, input_type.has_video,
-                           input_type.has_audio, base::Bind(&OnWriteCallback));
+                           input_type.has_audio,
+                           base::BindRepeating(&OnWriteCallback));
     base::RunLoop run_loop;
     run_loop.RunUntilIdle();
 

media/muxers/webm_muxer_unittest.cc

@@ -50,7 +50,8 @@ class WebmMuxerTest : public TestWithParam<TestParams> {
             GetParam().audio_codec,
             GetParam().num_video_tracks,
             GetParam().num_audio_tracks,
-            base::Bind(&WebmMuxerTest::WriteCallback, base::Unretained(this)))),
+            base::BindRepeating(&WebmMuxerTest::WriteCallback,
+                                base::Unretained(this)))),
         last_encoded_length_(0),
         accumulated_position_(0) {
     EXPECT_EQ(webm_muxer_->Position(), 0);