refactor: use std::string instead of base::string16 for IPC channel names (#14286)

spec/api-ipc-renderer-spec.js

@@ -154,6 +154,21 @@ describe('ipc renderer module', () => {
 
       contents.loadURL(`file://${path.join(fixtures, 'pages', 'ping-pong.html')}`)
     })
+
+    it('sends message to WebContents (channel has special chars)', done => {
+      const webContentsId = remote.getCurrentWebContents().id
+
+      ipcRenderer.once('pong-æøåü', (event, id) => {
+        expect(webContentsId).to.equal(id)
+        done()
+      })
+
+      contents.once('did-finish-load', () => {
+        ipcRenderer.sendTo(contents.id, 'ping-æøåü', webContentsId)
+      })
+
+      contents.loadURL(`file://${path.join(fixtures, 'pages', 'ping-pong.html')}`)
+    })
   })
 
   describe('remote listeners', () => {

spec/fixtures/pages/ping-pong.html

@@ -5,6 +5,9 @@
   ipcRenderer.on('ping', function (event, id) {
     ipcRenderer.sendTo(id, 'pong', id)
   })
+  ipcRenderer.on('ping-æøåü', function (event, id) {
+    ipcRenderer.sendTo(id, 'pong-æøåü', id)
+  })
 </script>
 </body>
 </html>