Remove remaing from 'os' imports

Summary: Per title.

Reviewed By: passy

Differential Revision: D32721206

fbshipit-source-id: 9e465d0ed60c0c6da33c462aa76468faac620626

desktop/flipper-ui-core/src/chrome/VideoRecordingButton.tsx

@@ -11,7 +11,7 @@ import React, {Component} from 'react';
 import BaseDevice from '../devices/BaseDevice';
 import {Button, Glyph, colors} from '../ui';
 import path from 'path';
-import os from 'os';
+import {getRenderHostInstance} from '../RenderHost';
 
 type OwnProps = {
   recordingFinished: (path: string | null) => void;
@@ -41,7 +41,10 @@ export default class VideoRecordingButton extends Component<Props, State> {
       return;
     }
 
-    const flipperDirectory = path.join(os.homedir(), '.flipper');
+    const flipperDirectory = path.join(
+      getRenderHostInstance().serverConfig.paths.homePath,
+      '.flipper',
+    );
     const fileName = `screencap-${new Date()
       .toISOString()
       .replace(/:/g, '')}.mp4`;

desktop/flipper-ui-core/src/fb-stubs/checkForUpdate.tsx

@@ -7,13 +7,13 @@
  * @format
  */
 
-import os from 'os';
 import {VersionCheckResult} from '../chrome/UpdateIndicator';
+import {getRenderHostInstance} from '../RenderHost';
 
 const updateServer = 'https://www.facebook.com/fbflipper/public/latest.json';
 
 const getPlatformSpecifier = (): string => {
-  switch (os.platform()) {
+  switch (getRenderHostInstance().serverConfig.environmentInfo.os.platform) {
     case 'win32':
       return 'windows';
     case 'linux':

desktop/flipper-ui-core/src/utils/exportData.tsx

@@ -8,7 +8,6 @@
  */
 
 import * as React from 'react';
-import os from 'os';
 import path from 'path';
 import {getLogger} from 'flipper-common';
 import {Store, MiddlewareAPI} from '../reducers';
@@ -623,7 +622,10 @@ export function canFileExport() {
 export async function startFileExport(dispatch: Store['dispatch']) {
   const file = await getRenderHostInstance().showSaveDialog?.({
     title: 'FlipperExport',
-    defaultPath: path.join(os.homedir(), 'FlipperExport.flipper'),
+    defaultPath: path.join(
+      getRenderHostInstance().serverConfig.paths.homePath,
+      'FlipperExport.flipper',
+    ),
   });
   if (!file) {
     return;