Fix spurious comment.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=120115490

library/src/main/java/com/google/android/exoplayer/chunk/ContainerMediaChunk.java

@@ -131,7 +131,7 @@ public class ContainerMediaChunk extends BaseMediaChunk implements SingleTrackMe
         trackOutput.setSampleOffsetUs(sampleOffsetUs);
         trackOutput.setSampleOffsetUs(sampleOffsetUs);
         extractorWrapper.init(this, trackOutput);
         extractorWrapper.init(this, trackOutput);
       }
       }
-      // Load and parse the initialization data.
+      // Load and parse the sample data.
       try {
       try {
         int result = Extractor.RESULT_CONTINUE;
         int result = Extractor.RESULT_CONTINUE;
         while (result == Extractor.RESULT_CONTINUE && !loadCanceled) {
         while (result == Extractor.RESULT_CONTINUE && !loadCanceled) {