refactor(Http): remove HttpFactory

BREAKING CHANGE: HttpFactory is no longer available. 
    This factory provided a function alternative to the `request` method of the
    Http class, but added no real value. The additional factory required an
    additional IHttp interface, an odd way to inject while preserving type information
    (`@Inject(HttpFactory) http:IHttp`), and required additional documentation in the
    http module.

Closes #2564

modules/angular2/http.ts

@@ -6,7 +6,7 @@
  * class.
  */
 import {bind, Binding} from 'angular2/di';
-import {Http, HttpFactory} from './src/http/http';
+import {Http} from './src/http/http';
 import {XHRBackend, XHRConnection} from 'angular2/src/http/backends/xhr_backend';
 import {BrowserXHR} from 'angular2/src/http/backends/browser_xhr';
 import {BaseRequestOptions, RequestOptions} from 'angular2/src/http/base_request_options';
@@ -17,7 +17,6 @@ export {Request} from 'angular2/src/http/static_request';
 export {Response} from 'angular2/src/http/static_response';
 
 export {
-  IHttp,
   IRequestOptions,
   IResponse,
   Connection,
@@ -26,7 +25,7 @@ export {
 
 export {BaseRequestOptions, RequestOptions} from 'angular2/src/http/base_request_options';
 export {XHRBackend, XHRConnection} from 'angular2/src/http/backends/xhr_backend';
-export {Http, HttpFactory} from './src/http/http';
+export {Http} from './src/http/http';
 
 export {Headers} from 'angular2/src/http/headers';
 
@@ -50,12 +49,5 @@ export {URLSearchParams} from 'angular2/src/http/url_search_params';
  * ```
  *
  */
-export var httpInjectables: List<any> = [
+export var httpInjectables: List<any> =
-  bind(ConnectionBackend)
+    [bind(ConnectionBackend).toClass(XHRBackend), BrowserXHR, XHRBackend, BaseRequestOptions, Http];
-      .toClass(XHRBackend),
-  BrowserXHR,
-  XHRBackend,
-  BaseRequestOptions,
-  bind(HttpFactory).toFactory(HttpFactory, [XHRBackend, BaseRequestOptions]),
-  Http
-];

modules/angular2/src/http/http.ts

@@ -144,36 +144,3 @@ export class Http {
                                                                RequestMethods.HEAD, url)));
   }
 }
-
-/**
- *
- * Alias to the `request` method of {@link Http}, for those who'd prefer a simple function instead
- * of an object. In order to get TypeScript type information about the `HttpFactory`, the {@link
- * IHttp} interface can be used as shown in the following example.
- *
- * #Example
- *
- * ```
- * import {httpInjectables, HttpFactory, IHttp} from 'angular2/http';
- * @Component({
- *   appInjector: [httpInjectables]
- * })
- * @View({
- *   templateUrl: 'people.html'
- * })
- * class MyComponent {
- *  constructor(@Inject(HttpFactory) http:IHttp) {
- *    http('people.json').subscribe(res => this.people = res.json());
- *  }
- * }
- * ```
- **/
-export function HttpFactory(backend: ConnectionBackend, defaultOptions: BaseRequestOptions) {
-  return function(url: string | Request, options?: IRequestOptions) {
-    if (isString(url)) {
-      return httpRequest(backend, new Request(mergeOptions(defaultOptions, options, null, url)));
-    } else if (url instanceof Request) {
-      return httpRequest(backend, url);
-    }
-  };
-}

modules/angular2/src/http/interfaces.ts

@@ -55,33 +55,8 @@ export interface IResponse {
   url: string;
   totalBytes: number;
   bytesLoaded: number;
-  blob(): any;  // TODO: Blob
+  blob(): any;         // TODO: Blob
   arrayBuffer(): any;  // TODO: ArrayBuffer
   text(): string;
   json(): Object;
 }
-
-/**
- * Provides an interface to provide type information for {@link HttpFactory} when injecting.
- *
- * #Example
- *
- * ```
- * * import {httpInjectables, HttpFactory, IHttp} from 'angular2/http';
- * @Component({
- *   appInjector: [httpInjectables]
- * })
- * @View({
- *   templateUrl: 'people.html'
- * })
- * class MyComponent {
- *  constructor(@Inject(HttpFactory) http:IHttp) {
- *    http('people.json').subscribe(res => this.people = res.json());
- *  }
- * }
- * ```
- *
- */
-// Prefixed as IHttp because used in conjunction with Http class, but interface is callable
-// constructor(@Inject(Http) http:IHttp)
-export interface IHttp { (url: string, options?: IRequestOptions): EventEmitter }

modules/angular2/test/http/http_spec.ts

@@ -11,7 +11,7 @@ import {
   xit,
   SpyObject
 } from 'angular2/test_lib';
-import {Http, HttpFactory} from 'angular2/src/http/http';
+import {Http} from 'angular2/src/http/http';
 import {Injector, bind} from 'angular2/di';
 import {MockBackend} from 'angular2/src/http/backends/mock_backend';
 import {Response} from 'angular2/src/http/static_response';
@@ -40,13 +40,10 @@ export function main() {
     var injector: Injector;
     var backend: MockBackend;
     var baseResponse;
-    var httpFactory;
     beforeEach(() => {
       injector = Injector.resolveAndCreate([
         BaseRequestOptions,
         MockBackend,
-        bind(ConnectionBackend).toClass(MockBackend),
-        bind(HttpFactory).toFactory(HttpFactory, [MockBackend, BaseRequestOptions]),
         bind(Http).toFactory(
             function(backend: ConnectionBackend, defaultOptions: BaseRequestOptions) {
               return new Http(backend, defaultOptions);
@@ -54,55 +51,12 @@ export function main() {
             [MockBackend, BaseRequestOptions])
       ]);
       http = injector.get(Http);
-      httpFactory = injector.get(HttpFactory);
       backend = injector.get(MockBackend);
       baseResponse = new Response({body: 'base response'});
     });
 
     afterEach(() => backend.verifyNoPendingRequests());
 
-    describe('HttpFactory', () => {
-      it('should return an Observable', () => {
-        expect(ObservableWrapper.isObservable(httpFactory(url))).toBe(true);
-        backend.resolveAllConnections();
-      });
-
-
-      it('should perform a get request for given url if only passed a string',
-         inject([AsyncTestCompleter], (async) => {
-           ObservableWrapper.subscribe(backend.connections, c => c.mockRespond(baseResponse));
-           ObservableWrapper.subscribe(httpFactory('http://basic.connection'), res => {
-             expect(res.text()).toBe('base response');
-             async.done();
-           });
-
-         }));
-
-
-      it('should accept a fully-qualified request as its only parameter',
-         inject([AsyncTestCompleter], (async) => {
-           var req = new Request(new RequestOptions({url: 'https://google.com'}));
-           ObservableWrapper.subscribe(backend.connections, c => {
-             expect(c.request.url).toBe('https://google.com');
-             c.mockRespond(new Response({body: 'Thank you'}));
-             async.done();
-           });
-           ObservableWrapper.subscribe(httpFactory(req), (res) => {});
-         }));
-
-      // TODO: make dart not complain about "argument type 'Map' cannot be assigned to the parameter
-      // type 'IRequestOptions'"
-      // xit('should perform a get request for given url if passed a dictionary',
-      //     inject([AsyncTestCompleter], async => {
-      //       ObservableWrapper.subscribe(backend.connections, c => c.mockRespond(baseResponse));
-      //       ObservableWrapper.subscribe(httpFactory(url, {method: RequestMethods.GET}), res => {
-      //         expect(res.text()).toBe('base response');
-      //         async.done();
-      //       });
-      //     }));
-    });
-
-
     describe('Http', () => {
       describe('.request()', () => {
         it('should return an Observable',