Update pubspecs and dependencies to get pkgbuild tests working.

third_party/pkg/angular/test/playback/playback_http_spec.dart

-library playback_http_spec;
-
-import '../_specs.dart';
-import 'package:angular/playback/playback_http.dart';
-
-main() => describe('Playback HTTP', () {
-  MockHttpBackend backend;
-  beforeEach(module((Module m) {
-    backend = new MockHttpBackend();
-    var wrapper = new HttpBackendWrapper(backend);
-    m
-      ..value(HttpBackendWrapper, wrapper)
-      ..type(PlaybackHttpBackendConfig);
-  }));
-
-  afterEach(() {
-    backend.verifyNoOutstandingRequest();
-    backend.verifyNoOutstandingExpectation();
-  });
-
-  describe('RecordingHttpBackend', () {
-    beforeEach(module((Module m) {
-      m.type(HttpBackend, implementedBy: RecordingHttpBackend);
-    }));
-
-
-    it('should record a request', async(inject((Http http) {
-      backend.expectGET('request').respond(200, 'response');
-
-      var responseData;
-
-      http(method: 'GET', url: 'request').then((HttpResponse r) {
-        responseData = r.data;
-      });
-
-      microLeap();
-      backend.flush();
-      backend
-        .expectPOST('/record',
-            r'{"key":"{\"url\":\"request\",\"method\":\"GET\",\"requestHeaders\":{\"Accept\":\"application/json, text/plain, */*\",\"X-XSRF-TOKEN\":\"secret\"},\"data\":null}",' +
-            r'"data":"{\"status\":200,\"headers\":\"\",\"data\":\"response\"}"}')
-        .respond(200);
-
-      microLeap();
-      backend.flush();
-      microLeap();
-
-      expect(responseData).toEqual('response');
-    })));
-  });
-
-
-  describe('PlaybackHttpBackend', () {
-    beforeEach(module((Module m) {
-      m.type(HttpBackend, implementedBy: PlaybackHttpBackend);
-    }));
-
-    it('should replay a request', async(inject((Http http, HttpBackend hb) {
-      (hb as PlaybackHttpBackend).data = {
-        r'{"url":"request","method":"GET","requestHeaders":{"Accept":"application/json, text/plain, */*","X-XSRF-TOKEN":"secret"},"data":null}': {'status': 200, 'headers': '', 'data': 'playback data'}
-      };
-
-      var responseData;
-
-      http(method: 'GET', url: 'request').then((HttpResponse r) {
-        responseData = r.data;
-      });
-
-      microLeap();
-
-      expect(responseData).toEqual('playback data');
-    })));
-
-  });
-});