implement platform utils additions

src/popup/app/vault/vaultViewCipherController.js

@@ -161,7 +161,6 @@ angular
                 cryptoService.getOrgKey($scope.cipher.organizationId).then(function (key) {
                     return cryptoService.decryptFromBytes(req.response, key);
                 }).then(function (decBuf) {
-                    var blob = new Blob([decBuf]);
                     BrowserApi.downloadFile($window, decBuf, null, attachment.fileName);
 
                     $timeout(function () {

src/services/browserPlatformUtils.service.ts

@@ -140,6 +140,18 @@ export default class BrowserPlatformUtilsService implements PlatformUtilsService
         return tabOpen;
     }
 
+    launchUri(uri: string, options?: any): void {
+        BrowserApi.createNewTab(uri, options && options.extensionPage === true);
+    }
+
+    saveFile(win: Window, blobData: any, blobOptions: any, fileName: string): void {
+        BrowserApi.downloadFile(win, blobData, blobOptions, fileName);
+    }
+
+    alertError(title: string, message: string): void {
+        // TODO
+    }
+
     private sidebarViewName(): string {
         if ((window as any).chrome.sidebarAction && this.isFirefox()) {
             return 'sidebar';