Move code that defines ipcRenderer methods into another file.

filenames.gypi

@@ -61,6 +61,7 @@
       'lib/renderer/api/desktop-capturer.js',
       'lib/renderer/api/exports/electron.js',
       'lib/renderer/api/ipc-renderer.js',
+      'lib/renderer/api/ipc-renderer-setup.js',
       'lib/renderer/api/remote.js',
       'lib/renderer/api/screen.js',
       'lib/renderer/api/web-frame.js',

lib/renderer/api/ipc-renderer-setup.js

@@ -0,0 +1,29 @@
+module.exports = function (ipcRenderer, binding) {
+  ipcRenderer.send = function (...args) {
+    return binding.send('ipc-message', args)
+  }
+
+  ipcRenderer.sendSync = function (...args) {
+    return JSON.parse(binding.sendSync('ipc-message-sync', args))
+  }
+
+  ipcRenderer.sendToHost = function (...args) {
+    return binding.send('ipc-message-host', args)
+  }
+
+  ipcRenderer.sendTo = function (webContentsId, channel, ...args) {
+    if (typeof webContentsId !== 'number') {
+      throw new TypeError('First argument has to be webContentsId')
+    }
+
+    ipcRenderer.send('ELECTRON_BROWSER_SEND_TO', false, webContentsId, channel, ...args)
+  }
+
+  ipcRenderer.sendToAll = function (webContentsId, channel, ...args) {
+    if (typeof webContentsId !== 'number') {
+      throw new TypeError('First argument has to be webContentsId')
+    }
+
+    ipcRenderer.send('ELECTRON_BROWSER_SEND_TO', true, webContentsId, channel, ...args)
+  }
+}

lib/renderer/api/ipc-renderer.js

@@ -5,33 +5,6 @@ const v8Util = process.atomBinding('v8_util')
 
 // Created by init.js.
 const ipcRenderer = v8Util.getHiddenValue(global, 'ipc')
-
-ipcRenderer.send = function (...args) {
-  return binding.send('ipc-message', args)
-}
-
-ipcRenderer.sendSync = function (...args) {
-  return JSON.parse(binding.sendSync('ipc-message-sync', args))
-}
-
-ipcRenderer.sendToHost = function (...args) {
-  return binding.send('ipc-message-host', args)
-}
-
-ipcRenderer.sendTo = function (webContentsId, channel, ...args) {
-  if (typeof webContentsId !== 'number') {
-    throw new TypeError('First argument has to be webContentsId')
-  }
-
-  ipcRenderer.send('ELECTRON_BROWSER_SEND_TO', false, webContentsId, channel, ...args)
-}
-
-ipcRenderer.sendToAll = function (webContentsId, channel, ...args) {
-  if (typeof webContentsId !== 'number') {
-    throw new TypeError('First argument has to be webContentsId')
-  }
-
-  ipcRenderer.send('ELECTRON_BROWSER_SEND_TO', true, webContentsId, channel, ...args)
-}
+require('./ipc-renderer-setup')(ipcRenderer, binding)
 
 module.exports = ipcRenderer