refactor(http): move http files to top-level module

Closes #2680
Closes #3417

modules/angular2/src/http/base_request_options.ts

@@ -1,97 +0,0 @@
-import {CONST_EXPR, CONST, isPresent, isString} from 'angular2/src/facade/lang';
-import {Headers} from './headers';
-import {RequestModesOpts, RequestMethods, RequestCacheOpts, RequestCredentialsOpts} from './enums';
-import {IRequestOptions} from './interfaces';
-import {Injectable} from 'angular2/di';
-import {URLSearchParams} from './url_search_params';
-
-/**
- * Creates a request options object similar to the `RequestInit` description
- * in the [Fetch
- * Spec](https://fetch.spec.whatwg.org/#requestinit) to be optionally provided when instantiating a
- * {@link Request}.
- *
- * All values are null by default.
- */
-export class RequestOptions implements IRequestOptions {
-  /**
-   * Http method with which to execute the request.
-   *
-   * Defaults to "GET".
-   */
-  method: RequestMethods;
-  /**
-   * Headers object based on the `Headers` class in the [Fetch
-   * Spec](https://fetch.spec.whatwg.org/#headers-class).
-   */
-  headers: Headers;
-  /**
-   * Body to be used when creating the request.
-   */
-  // TODO: support FormData, Blob, URLSearchParams
-  body: string;
-  mode: RequestModesOpts;
-  credentials: RequestCredentialsOpts;
-  cache: RequestCacheOpts;
-  url: string;
-  search: URLSearchParams;
-  constructor({method, headers, body, mode, credentials, cache, url, search}:
-                  IRequestOptions = {}) {
-    this.method = isPresent(method) ? method : null;
-    this.headers = isPresent(headers) ? headers : null;
-    this.body = isPresent(body) ? body : null;
-    this.mode = isPresent(mode) ? mode : null;
-    this.credentials = isPresent(credentials) ? credentials : null;
-    this.cache = isPresent(cache) ? cache : null;
-    this.url = isPresent(url) ? url : null;
-    this.search = isPresent(search) ? (isString(search) ? new URLSearchParams(<string>(search)) :
-                                                          <URLSearchParams>(search)) :
-                                      null;
-  }
-
-  /**
-   * Creates a copy of the `RequestOptions` instance, using the optional input as values to override
-   * existing values.
-   */
-  merge(options?: IRequestOptions): RequestOptions {
-    return new RequestOptions({
-      method: isPresent(options) && isPresent(options.method) ? options.method : this.method,
-      headers: isPresent(options) && isPresent(options.headers) ? options.headers : this.headers,
-      body: isPresent(options) && isPresent(options.body) ? options.body : this.body,
-      mode: isPresent(options) && isPresent(options.mode) ? options.mode : this.mode,
-      credentials: isPresent(options) && isPresent(options.credentials) ? options.credentials :
-                                                                          this.credentials,
-      cache: isPresent(options) && isPresent(options.cache) ? options.cache : this.cache,
-      url: isPresent(options) && isPresent(options.url) ? options.url : this.url,
-      search: isPresent(options) && isPresent(options.search) ?
-                  (isString(options.search) ? new URLSearchParams(<string>(options.search)) :
-                                              (<URLSearchParams>(options.search)).clone()) :
-                  this.search
-    });
-  }
-}
-
-/**
- * Injectable version of {@link RequestOptions}, with overridable default values.
- *
- * #Example
- *
- * ```
- * import {Http, BaseRequestOptions, Request} from 'angular2/http';
- * ...
- * class MyComponent {
- *   constructor(baseRequestOptions:BaseRequestOptions, http:Http) {
- *     var options = baseRequestOptions.merge({body: 'foobar', url: 'https://foo'});
- *     var request = new Request(options);
- *     http.request(request).subscribe(res => this.bars = res.json());
- *   }
- * }
- *
- * ```
- */
-@Injectable()
-export class BaseRequestOptions extends RequestOptions {
-  constructor() {
-    super({method: RequestMethods.GET, headers: new Headers(), mode: RequestModesOpts.Cors});
-  }
-}