Add ExoPlayer.Builder#buildExoPlayer method

Annotate build() with @InlineMe. I will update build() to return Player
in a future change.

PiperOrigin-RevId: 398446323

library/core/build.gradle

@@ -39,6 +39,7 @@ dependencies {
     api project(modulePrefix + 'library-extractor')
     implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     compileOnly 'com.google.code.findbugs:jsr305:' + jsr305Version
+    compileOnly 'com.google.errorprone:error_prone_annotations:' + errorProneVersion
     compileOnly 'org.checkerframework:checker-qual:' + checkerframeworkVersion
     compileOnly 'org.checkerframework:checker-compat-qual:' + checkerframeworkCompatVersion
     compileOnly 'org.jetbrains.kotlin:kotlin-annotations-jvm:' + kotlinAnnotationsVersion

library/core/src/main/java/com/google/android/exoplayer2/ExoPlayer.java

@@ -54,6 +54,7 @@ import com.google.android.exoplayer2.video.MediaCodecVideoRenderer;
 import com.google.android.exoplayer2.video.VideoFrameMetadataListener;
 import com.google.android.exoplayer2.video.VideoSize;
 import com.google.android.exoplayer2.video.spherical.CameraMotionListener;
+import com.google.errorprone.annotations.InlineMe;
 import java.util.List;
 
 /**
@@ -820,7 +821,17 @@ public interface ExoPlayer extends Player {
      *
      * @throws IllegalStateException If this method has already been called.
      */
+    @InlineMe(replacement = "this.buildExoPlayer()")
     public SimpleExoPlayer build() {
+      return buildExoPlayer();
+    }
+
+    /**
+     * Builds a {@link SimpleExoPlayer} instance.
+     *
+     * @throws IllegalStateException If this method has already been called.
+     */
+    public SimpleExoPlayer buildExoPlayer() {
       return wrappedBuilder.build();
     }
   }