Use try-with-resource to prevent output stream to be leaked in BlobProvider

Summary: This diff fixes a potential memory leak which can occur if an exception is thrown inside the try block and `outputStream.close()` is not called. By wrapping `outputStream.write(data)` inside try-with-resource we guarantee that outputStream will be closed regardless of whether the try statement completes normally or abruptly.

Reviewed By: sammy-SC

Differential Revision: D16148850

fbshipit-source-id: c5c0a78b36375857f6e717bb581e8686a4a94bb9

ReactAndroid/src/main/java/com/facebook/react/modules/blob/BlobProvider.java

@@ -85,10 +85,8 @@ public final class BlobProvider extends ContentProvider {
     ParcelFileDescriptor readSide = pipe[0];
     ParcelFileDescriptor writeSide = pipe[1];
 
-    OutputStream outputStream = new ParcelFileDescriptor.AutoCloseOutputStream(writeSide);
-    try {
+    try (OutputStream outputStream = new ParcelFileDescriptor.AutoCloseOutputStream(writeSide)) {
       outputStream.write(data);
-      outputStream.close();
     } catch (IOException exception) {
       return null;
     }