Move backup service init to the shared process

Since this is where it attempts to read it, this should solve the JSON
errors for good.

packages/vscode/src/workbench.ts

@@ -29,8 +29,6 @@ import { LogLevel } from "vs/platform/log/common/log";
 import { RawContextKey, IContextKeyService } from "vs/platform/contextkey/common/contextkey";
 import { ServiceCollection } from "vs/platform/instantiation/common/serviceCollection";
 import { URI } from "vs/base/common/uri";
-import { BackupMainService } from "vs/platform/backup/electron-main/backupMainService";
-import { IInstantiationService } from "vs/platform/instantiation/common/instantiation";
 
 /**
  * Initializes VS Code and provides a way to call into general client
@@ -131,14 +129,6 @@ export class Workbench {
 	public set serviceCollection(collection: ServiceCollection) {
 		this._serviceCollection = collection;
 
-		// TODO: If possible it might be better to start the app from vs/code/electron-main/app.
-		// For now, manually initialize services from there as needed.
-		const inst = this._serviceCollection.get(IInstantiationService) as IInstantiationService;
-		const backupMainService = inst.createInstance(BackupMainService) as BackupMainService;
-		backupMainService.initialize().catch((error) => {
-			logger.error(error.message);
-		});
-
 		const contextKeys = this.serviceCollection.get(IContextKeyService) as IContextKeyService;
 		const bounded = this.clipboardContextKey.bindTo(contextKeys);
 		client.clipboard.onPermissionChange((enabled) => {

scripts/vscode.patch

@@ -138,10 +138,16 @@ index e0ff793..885de12 100644
 -		const cmdOrCtrlKey = platform.isMacintosh ? e.metaKey : e.ctrlKey;
 +		const cmdOrCtrlKey = browser.isMacintosh ? e.metaKey : e.ctrlKey;
 diff --git a/src/vs/code/electron-browser/sharedProcess/sharedProcessMain.ts b/src/vs/code/electron-browser/sharedProcess/sharedProcessMain.ts
-index 6fd8249..796aed7 100644
+index 6fd8249..039d31a 100644
 --- a/src/vs/code/electron-browser/sharedProcess/sharedProcessMain.ts
 +++ b/src/vs/code/electron-browser/sharedProcess/sharedProcessMain.ts
-@@ -223,0 +224,2 @@ async function handshake(configuration: ISharedProcessConfiguration): Promise<vo
+@@ -50,0 +51 @@ import { ServiceIdentifier } from 'vs/platform/instantiation/common/instantiatio
++import { BackupMainService } from 'vs/platform/backup/electron-main/backupMainService';
+@@ -120,0 +122,3 @@ function main(server: Server, initData: ISharedProcessInitData, configuration: I
++	const backupMainService = instantiationService.createInstance(BackupMainService) as BackupMainService;
++	backupMainService.initialize().catch(console.error);
++
+@@ -223,0 +228,2 @@ async function handshake(configuration: ISharedProcessConfiguration): Promise<vo
 +
 +startup({ machineId: "1" });
 diff --git a/src/vs/editor/browser/config/configuration.ts b/src/vs/editor/browser/config/configuration.ts