Track source of extension install for dependencies

src/vs/platform/extensionManagement/node/extensionGalleryService.ts

@@ -528,7 +528,7 @@ export class ExtensionGalleryService implements IExtensionGalleryService {
 			for (let index = 0; index < result.galleryExtensions.length; index++) {
 				const rawExtension = result.galleryExtensions[index];
 				if (ids.indexOf(rawExtension.extensionId) === -1) {
-					dependencies.push(toExtension(rawExtension, this.extensionsGalleryUrl, index, query));
+					dependencies.push(toExtension(rawExtension, this.extensionsGalleryUrl, index, query, 'dependencies'));
 					ids.push(rawExtension.extensionId);
 				}
 			}

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

@@ -253,13 +253,15 @@ export class ExtensionsListView extends ViewsViewletPanel {
 			});
 
 			if (names.length) {
-				const namesOptions = assign({}, options, { names });
+				const namesOptions = assign({}, options, { names, source: 'extRegex' });
 				pagerPromises.push(this.extensionsWorkbenchService.queryGallery(namesOptions));
 			}
 		}
 
 		if (text) {
 			options = assign(options, { text: text.substr(0, 350) });
+		} else {
+			options.source = 'viewlet';
 		}
 
 		pagerPromises.push(this.extensionsWorkbenchService.queryGallery(options));