Fix undefined navigator in bootstrap fork

Due to some files that now import browser.ts.

Author: code-asher

packages/vscode/webpack.bootstrap.config.js

@@ -49,6 +49,7 @@ module.exports = merge(
 				"node-pty": path.resolve(fills, "empty.ts"),
 				"windows-mutex": path.resolve(fills, "empty.ts"),
 				"windows-process-tree": path.resolve(fills, "empty.ts"),
+				"vs/base/browser/browser": path.resolve(fills, "empty.ts"),
 
 				"electron": path.join(vsFills, "stdioElectron.ts"),
 				"native-keymap": path.join(vsFills, "native-keymap.ts"),

scripts/vscode.patch

@@ -312,14 +312,6 @@ index 667b47218a..36dd5ddd3e 100644
 @@ -9 +9 @@ import { URI } from 'vs/base/common/uri';
 -import { isMacintosh } from 'vs/base/common/platform';
 +import { isMacintosh } from 'vs/base/browser/browser';
-diff --git a/src/vs/platform/launch/electron-main/launchService.ts b/src/vs/platform/launch/electron-main/launchService.ts
-index ba14b19533..d1590f50ef 100644
---- a/src/vs/platform/launch/electron-main/launchService.ts
-+++ b/src/vs/platform/launch/electron-main/launchService.ts
-@@ -9 +9,2 @@ import { IURLService } from 'vs/platform/url/common/url';
--import { IProcessEnvironment, isMacintosh } from 'vs/base/common/platform';
-+import { IProcessEnvironment } from 'vs/base/common/platform';
-+import { isMacintosh } from 'vs/base/browser/browser';
 diff --git a/src/vs/platform/windows/common/windows.ts b/src/vs/platform/windows/common/windows.ts
 index 56eaeef6f4..ec8a6e5960 100644
 --- a/src/vs/platform/windows/common/windows.ts