Rename some references from PlayerView to LegacyPlayerView

These were missed in https://github.com/androidx/media/commit/9dae5fd2c0d2781064a296d8b73e4aae99cd0d16

These references will be re-written to PlayerView when exporting to
exoplayer2, so this commit results in some small reformatting changes.

Also fix a reference to LegacyPlayerControlView that should be
StyledPlayerControlView.

PiperOrigin-RevId: 420707706

libraries/decoder_av1/README.md

@@ -112,7 +112,7 @@ gets from the libgav1 decoder:
         `VideoDecoderOutputBufferRenderer` as its object.
         `VideoDecoderGLSurfaceView` is the concrete
         `VideoDecoderOutputBufferRenderer` implementation used by
-        `(Styled)PlayerView`.
+        `StyledPlayerView` and `LegacyPlayerView`.
 
 *   Native rendering using `ANativeWindow`
 

libraries/decoder_vp9/README.md

@@ -125,7 +125,7 @@ gets from the libvpx decoder:
         `VideoDecoderOutputBufferRenderer` as its object.
         `VideoDecoderGLSurfaceView` is the concrete
         `VideoDecoderOutputBufferRenderer` implementation used by
-        `(Styled)PlayerView`.
+        `StyledPlayerView` and `LegacyPlayerView`.
 
 *   Native rendering using `ANativeWindow`
 

libraries/ui/src/main/res/values/attrs.xml

@@ -105,7 +105,7 @@
     <attr name="surface_type"/>
     <!-- AspectRatioFrameLayout attributes -->
     <attr name="resize_mode"/>
-    <!-- LegacyPlayerControlView attributes -->
+    <!-- StyledPlayerControlView attributes -->
     <attr name="show_timeout"/>
     <attr name="repeat_toggle_modes"/>
     <attr name="show_shuffle_button"/>