Rename `FloatResamplingAudioProcessor` to `ToFloatPcmAudioProcessor`.

Resampling as a term is overloaded, however it was raised as a
confusing term in a meeting recently, as the 1P team initially thought
this would change the sample rate. The naming of this `AudioProcessor`
now matches `ToInt16PcmAudioProcessor`.

PiperOrigin-RevId: 503441019

library/core/src/main/java/com/google/android/exoplayer2/audio/DefaultAudioSink.java

@@ -532,7 +532,7 @@ public final class DefaultAudioSink implements AudioSink {
     toIntPcmAvailableAudioProcessors =
         ImmutableList.of(
             new ToInt16PcmAudioProcessor(), channelMappingAudioProcessor, trimmingAudioProcessor);
-    toFloatPcmAvailableAudioProcessors = ImmutableList.of(new FloatResamplingAudioProcessor());
+    toFloatPcmAvailableAudioProcessors = ImmutableList.of(new ToFloatPcmAudioProcessor());
     volume = 1f;
     audioAttributes = AudioAttributes.DEFAULT;
     audioSessionId = C.AUDIO_SESSION_ID_UNSET;

library/core/src/main/java/com/google/android/exoplayer2/audio/FloatResamplingAudioProcessor.java → library/core/src/main/java/com/google/android/exoplayer2/audio/ToFloatPcmAudioProcessor.java

@@ -31,7 +31,7 @@ import java.nio.ByteBuffer;
  *   <li>{@link C#ENCODING_PCM_FLOAT} ({@link #isActive()} will return {@code false})
  * </ul>
  */
-/* package */ final class FloatResamplingAudioProcessor extends BaseAudioProcessor {
+/* package */ final class ToFloatPcmAudioProcessor extends BaseAudioProcessor {
 
   private static final int FLOAT_NAN_AS_INT = Float.floatToIntBits(Float.NaN);
   private static final double PCM_32_BIT_INT_TO_PCM_32_BIT_FLOAT_FACTOR = 1.0 / 0x7FFFFFFF;