buffer: add Blob.prototype.stream method and other cleanups

doc/api/buffer.md

@@ -507,15 +507,24 @@ added: v15.7.0
 Creates and returns a new `Blob` containing a subset of this `Blob` objects
 data. The original `Blob` is not altered.
 
+### `blob.stream()`
+<!-- YAML
+added: REPLACEME
+-->
+
+* Returns: {ReadableStream}
+
+Returns a new `ReadableStream` that allows the content of the `Blob` to be read.
+
 ### `blob.text()`
 <!-- YAML
 added: v15.7.0
 -->
 
 * Returns: {Promise}
 
-Returns a promise that resolves the contents of the `Blob` decoded as a UTF-8
-string.
+Returns a promise that fulfills with the contents of the `Blob` decoded as a
+UTF-8 string.
 
 ### `blob.type`
 <!-- YAML
@@ -4943,6 +4952,20 @@ added: v3.0.0
 
 An alias for [`buffer.constants.MAX_STRING_LENGTH`][].
 
+### `buffer.resolveObjectURL(id)`
+<!-- YAML
+added: REPLACEME
+-->
+
+> Stability: 1 - Experimental
+
+* `id` {string} A `'blob:nodedata:...` URL string returned by a prior call to
+  `URL.createObjectURL()`.
+* Returns: {Blob}
+
+Resolves a `'blob:nodedata:...'` an associated {Blob} object registered using
+a prior call to `URL.createObjectURL()`.
+
 ### `buffer.transcode(source, fromEnc, toEnc)`
 <!-- YAML
 added: v7.1.0

doc/api/url.md

@@ -608,6 +608,53 @@ console.log(JSON.stringify(myURLs));
 // Prints ["https://www.example.com/","https://test.example.org/"]
 ```
 
+#### `URL.createObjectURL(blob)`
+<!-- YAML
+added: REPLACEME
+-->
+
+> Stability: 1 - Experimental
+
+* `blob` {Blob}
+* Returns: {string}
+
+Creates a `'blob:nodedata:...'` URL string that represents the given {Blob}
+object and can be used to retrieve the `Blob` later.
+
+```js
+const {
+  Blob,
+  resolveObjectURL,
+} = require('buffer');
+
+const blob = new Blob(['hello']);
+const id = URL.createObjectURL(blob);
+
+// later...
+
+const otherBlob = resolveObjectURL(id);
+console.log(otherBlob.size);
+```
+
+The data stored by the registered {Blob} will be retained in memory until
+`URL.revokeObjectURL()` is called to remove it.
+
+`Blob` objects are registered within the current thread. If using Worker
+Threads, `Blob` objects registered within one Worker will not be available
+to other workers or the main thread.
+
+#### `URL.revokeObjectURL(id)`
+<!-- YAML
+added: REPLACEME
+-->
+
+> Stability: 1 - Experimental
+
+* `id` {string} A `'blob:nodedata:...` URL string returned by a prior call to
+  `URL.createObjectURL()`.
+
+Removes the stored {Blob} identified by the given ID.
+
 ### Class: `URLSearchParams`
 <!-- YAML
 added:

lib/buffer.js

@@ -120,6 +120,7 @@ const {
 
 const {
   Blob,
+  resolveObjectURL,
 } = require('internal/blob');
 
 FastBuffer.prototype.constructor = Buffer;
@@ -1239,6 +1240,7 @@ function atob(input) {
 
 module.exports = {
   Blob,
+  resolveObjectURL,
   Buffer,
   SlowBuffer,
   transcode,