Provide Cronet request and response data for subclasses.

Subclasses may want to analyze, log and react to the Cronet-specific
connection data.

Issue:#5134
PiperOrigin-RevId: 222809441

extensions/cronet/src/main/java/com/google/android/exoplayer2/ext/cronet/CronetDataSource.java

@@ -16,6 +16,7 @@
 package com.google.android.exoplayer2.ext.cronet;
 package com.google.android.exoplayer2.ext.cronet;
 
 
 import android.net.Uri;
 import android.net.Uri;
+import android.support.annotation.Nullable;
 import android.text.TextUtils;
 import android.text.TextUtils;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.ExoPlayerLibraryInfo;
 import com.google.android.exoplayer2.ExoPlayerLibraryInfo;
@@ -455,6 +456,18 @@ public class CronetDataSource extends BaseDataSource implements HttpDataSource {
     }
     }
   }
   }
 
 
+  /** Returns current {@link UrlRequest}. May be null if the data source is not opened. */
+  @Nullable
+  protected UrlRequest getCurrentUrlRequest() {
+    return currentUrlRequest;
+  }
+
+  /** Returns current {@link UrlResponseInfo}. May be null if the data source is not opened. */
+  @Nullable
+  protected UrlResponseInfo getCurrentUrlResponseInfo() {
+    return responseInfo;
+  }
+
   // Internal methods.
   // Internal methods.
 
 
   private UrlRequest.Builder buildRequestBuilder(DataSpec dataSpec) throws IOException {
   private UrlRequest.Builder buildRequestBuilder(DataSpec dataSpec) throws IOException {