feat: bump @metamask/providers to ^21.0.0 (#31056)

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Bumps the `@metamask/providers` package to `^21.0.0` and adopts
necessary changes to usage

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See: MetaMask/providers#410

No user facing changes. Visit any dapp and use it as before.

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Standards](https://github.com/MetaMask/metamask-extension/blob/main/.github/guidelines/CODING_GUIDELINES.md).
- [ ] I've completed the PR template to the best of my ability
- [ ] I’ve included tests if applicable
- [ ] I’ve documented my code using [JSDoc](https://jsdoc.app/) format
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guidelines](https://github.com/MetaMask/metamask-extension/blob/main/.github/guidelines/LABELING_GUIDELINES.md)).
Not required for external contributors.

- [ ] I've manually tested the PR (e.g. pull and build branch, run the
app, test code being changed).
- [ ] I confirm that this PR addresses all acceptance criteria described
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Author: jiexi

app/scripts/inpage.js

@@ -35,6 +35,8 @@ import log from 'loglevel';
 import { v4 as uuid } from 'uuid';
 import { WindowPostMessageStream } from '@metamask/post-message-stream';
 import { initializeProvider } from '@metamask/providers/initializeInpageProvider';
+import ObjectMultiplex from '@metamask/object-multiplex';
+import { pipeline } from 'readable-stream';
 
 // this is currently equivalent to process.env.MULTICHAIN_API
 // which can't be used for conditional imports
@@ -47,6 +49,7 @@ import { registerSolanaWalletStandard } from '@metamask/solana-wallet-standard';
 ///: END:ONLY_INCLUDE_IF
 
 import shouldInjectProvider from '../../shared/modules/provider-injection';
+import { METAMASK_EIP_1193_PROVIDER } from './constants/stream';
 
 // contexts
 const CONTENT_SCRIPT = 'metamask-contentscript';
@@ -67,8 +70,17 @@ if (shouldInjectProvider()) {
     target: CONTENT_SCRIPT,
   });
 
+  const mux = new ObjectMultiplex();
+  pipeline(metamaskStream, mux, metamaskStream, (error) => {
+    let warningMsg = `Lost connection to "${METAMASK_EIP_1193_PROVIDER}".`;
+    if (error?.stack) {
+      warningMsg += `\n${error.stack}`;
+    }
+    console.warn(warningMsg);
+  });
+
   initializeProvider({
-    connectionStream: metamaskStream,
+    connectionStream: mux.createStream(METAMASK_EIP_1193_PROVIDER),
     logger: log,
     shouldShimWeb3: true,
     providerInfo: {

package.json

@@ -310,7 +310,7 @@
     "@metamask/ppom-validator": "0.36.0",
     "@metamask/preinstalled-example-snap": "^0.3.0",
     "@metamask/profile-sync-controller": "^11.0.1",
-    "@metamask/providers": "^20.0.0",
+    "@metamask/providers": "^21.0.0",
     "@metamask/queued-request-controller": "^7.0.1",
     "@metamask/rate-limit-controller": "^6.0.3",
     "@metamask/remote-feature-flag-controller": "^1.6.0",

yarn.lock

@@ -6205,27 +6205,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@metamask/providers@npm:^20.0.0":
-  version: 20.0.0
-  resolution: "@metamask/providers@npm:20.0.0"
-  dependencies:
-    "@metamask/json-rpc-engine": "npm:^10.0.2"
-    "@metamask/json-rpc-middleware-stream": "npm:^8.0.6"
-    "@metamask/object-multiplex": "npm:^2.0.0"
-    "@metamask/rpc-errors": "npm:^7.0.2"
-    "@metamask/safe-event-emitter": "npm:^3.1.1"
-    "@metamask/utils": "npm:^11.0.1"
-    detect-browser: "npm:^5.2.0"
-    extension-port-stream: "npm:^4.1.0"
-    fast-deep-equal: "npm:^3.1.3"
-    is-stream: "npm:^2.0.0"
-    readable-stream: "npm:^3.6.2"
-  peerDependencies:
-    webextension-polyfill: ^0.10.0 || ^0.11.0 || ^0.12.0
-  checksum: 10/b958d03a9380d86e605db239109a3debcc1ffde90371abe5beb82a5bed46c7718303a2bb92ec269eae16eff145b9ebbfcb3445a2b6bad4f297a590ee725a5bad
-  languageName: node
-  linkType: hard
-
 "@metamask/providers@npm:^21.0.0":
   version: 21.0.0
   resolution: "@metamask/providers@npm:21.0.0"
@@ -27432,7 +27411,7 @@ __metadata:
     "@metamask/preferences-controller": "npm:^17.0.0"
     "@metamask/preinstalled-example-snap": "npm:^0.3.0"
     "@metamask/profile-sync-controller": "npm:^11.0.1"
-    "@metamask/providers": "npm:^20.0.0"
+    "@metamask/providers": "npm:^21.0.0"
     "@metamask/queued-request-controller": "npm:^7.0.1"
     "@metamask/rate-limit-controller": "npm:^6.0.3"
     "@metamask/remote-feature-flag-controller": "npm:^1.6.0"