Move MediaExtractorCompatTest from test/ to androidTest/

The test has been moved to an instrumentation test as it relies on APIs that vary by SDK version. Robolectric’s emulation lacks sufficient realism in some cases, which impacts test accuracy. By using an instrumentation test, we ensure that the tests run in a real Android environment, providing reliable results for SDK-dependent APIs.

PiperOrigin-RevId: 692933259
(cherry picked from commit 261ca32)

libraries/exoplayer/src/test/java/androidx/media3/exoplayer/MediaExtractorCompatTest.java → libraries/exoplayer/src/androidTest/java/androidx/media3/exoplayer/MediaExtractorCompatTest.java

@@ -37,7 +37,6 @@
 import androidx.media3.extractor.SeekMap.SeekPoints;
 import androidx.media3.extractor.SeekPoint;
 import androidx.media3.extractor.TrackOutput;
-import androidx.media3.test.utils.AssetContentProvider;
 import androidx.media3.test.utils.TestUtil;
 import androidx.test.core.app.ApplicationProvider;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
@@ -567,8 +566,7 @@ public void seek_withException_producesEndOfInput() throws IOException {
   public void setDataSourceUsingMethodExpectingContentUri_useContentUri_setsTrackCountCorrectly()
       throws IOException {
     Context context = ApplicationProvider.getApplicationContext();
-    Uri contentUri =
-        AssetContentProvider.buildUri(/* filePath= */ "media/mp4/sample.mp4", /* pipeMode= */ true);
+    Uri contentUri = Uri.parse("asset:///media/mp4/sample.mp4");
     MediaExtractorCompat mediaExtractorCompat = new MediaExtractorCompat(context);
 
     mediaExtractorCompat.setDataSource(context, contentUri, /* headers= */ null);