Replace schema check with file service handling

src/vs/workbench/parts/extensions/electron-browser/extensionTipsService.ts

@@ -43,7 +43,6 @@ import { assign } from 'vs/base/common/objects';
 import URI from 'vs/base/common/uri';
 import { areSameExtensions, getGalleryExtensionIdFromLocal } from 'vs/platform/extensionManagement/common/extensionManagementUtil';
 import { IExperimentService, ExperimentActionType, ExperimentState } from 'vs/workbench/parts/experiments/node/experimentService';
-import { Schemas } from 'vs/base/common/network';
 
 const milliSecondsInADay = 1000 * 60 * 60 * 24;
 const choiceNever = localize('neverShowAgain', "Don't Show Again");
@@ -500,7 +499,7 @@ export class ExtensionTipsService extends Disposable implements IExtensionTipsSe
 		let hasSuggestion = false;
 
 		const uri = model.uri;
-		if (!uri || uri.scheme !== Schemas.file) {
+		if (!uri || !this.fileService.canHandleResource(uri)) {
 			return;
 		}
 
@@ -892,7 +891,7 @@ export class ExtensionTipsService extends Disposable implements IExtensionTipsSe
 
 	private fetchDynamicWorkspaceRecommendations(): TPromise<void> {
 		if (this.contextService.getWorkbenchState() !== WorkbenchState.FOLDER
-			|| this.contextService.getWorkspace().folders[0].uri.scheme !== Schemas.file // #54483: check with @Ramya
+			|| !this.fileService.canHandleResource(this.contextService.getWorkspace().folders[0].uri)
 			|| this._dynamicWorkspaceRecommendations.length
 			|| !this._extensionsRecommendationsUrl) {
 			return TPromise.as(null);