[Fetch API] Put body members directly on Response/Request

LayoutTests/http/tests/serviceworker/resources/fetch-worker.js

 importScripts('worker-test-harness.js');
 importScripts('test-helpers.js');
 
 async_test(function(t) {
     fetch('http://')
       .then(
         unreached_rejection(t, 'fetch of invalid URL must fail'),
         function(e) {
           assert_equals(e.message, 'Invalid URL');
           t.done();
@@ skipping 30 matching lines @@
 }
 
 async_test(function(t) {
     var request =
       new Request('fetch-access-control.php',
                   {
                     method: 'POST',
                     body: new Blob(['Test Blob'], {type: 'test/type'})
                   });
     fetch(request)
-      .then(function(response) { return response.body.asText(); })
+      .then(function(response) { return response.text(); })
       .then(evalJsonp)
       .then(function(result) {
           assert_equals(result.method, 'POST');
           assert_equals(result.body, 'Test Blob');
           t.done();
         })
       .catch(unreached_rejection(t));
   }, 'Fetch with Blob body test in ServiceWorkerGlobalScope');
 
 async_test(function(t) {
     var request = new Request('fetch-access-control.php',
                               {method: 'POST', body: 'Test String'});
     fetch(request)
-      .then(function(response) { return response.body.asText(); })
+      .then(function(response) { return response.text(); })
       .then(evalJsonp)
       .then(function(result) {
           assert_equals(result.method, 'POST');
           assert_equals(result.body, 'Test String');
           t.done();
         })
       .catch(unreached_rejection(t));
   }, 'Fetch with string body test in ServiceWorkerGlobalScope');
 
 async_test(function(t) {
     var text = "Test ArrayBuffer";
     var array = new Uint8Array(text.length);
     for (var i = 0; i < text.length; ++i)
       array[i] = text.charCodeAt(i);
     var request = new Request('fetch-access-control.php',
                               {method: 'POST', body: array.buffer});
     fetch(request)
-      .then(function(response) { return response.body.asText(); })
+      .then(function(response) { return response.text(); })
       .then(evalJsonp)
       .then(function(result) {
           assert_equals(result.method, 'POST');
           assert_equals(result.body, 'Test ArrayBuffer');
           t.done();
         })
       .catch(unreached_rejection(t));
   }, 'Fetch with ArrayBuffer body test in ServiceWorkerGlobalScope');
 
 async_test(function(t) {
     var text = "Test ArrayBufferView";
     var array = new Uint8Array(text.length);
     for (var i = 0; i < text.length; ++i)
       array[i] = text.charCodeAt(i);
     var request = new Request('fetch-access-control.php',
                               {method: 'POST', body: array});
     fetch(request)
-      .then(function(response) { return response.body.asText(); })
+      .then(function(response) { return response.text(); })
       .then(evalJsonp)
       .then(function(result) {
           assert_equals(result.method, 'POST');
           assert_equals(result.body, 'Test ArrayBufferView');
           t.done();
         })
       .catch(unreached_rejection(t));
   }, 'Fetch with ArrayBufferView body test in ServiceWorkerGlobalScope');
 
 async_test(function(t) {
     var formData = new FormData();
     formData.append('StringKey1', '1234567890');
     formData.append('StringKey2', 'ABCDEFGHIJ');
     formData.append('BlobKey', new Blob(['blob content']));
     formData.append('FileKey',
                     new File(['file content'], 'file.dat'));
     var request = new Request('fetch-access-control.php',
                           {method: 'POST', body: formData});
     fetch(request)
-      .then(function(response) { return response.body.asText(); })
+      .then(function(response) { return response.text(); })
       .then(evalJsonp)
       .then(function(result) {
           assert_equals(result.method, 'POST');
           assert_equals(result.post['StringKey1'], '1234567890');
           assert_equals(result.post['StringKey2'], 'ABCDEFGHIJ');
           var files = [];
           for (var i = 0; i < result.files.length; ++i) {
             files[result.files[i].key] = result.files[i];
           }
           assert_equals(files['BlobKey'].content, 'blob content');
           assert_equals(files['BlobKey'].name, 'blob');
           assert_equals(files['BlobKey'].size, 12);
           assert_equals(files['FileKey'].content, 'file content');
           assert_equals(files['FileKey'].name, 'file.dat');
           assert_equals(files['FileKey'].size, 12);
           t.done();
         })
       .catch(unreached_rejection(t));
   }, 'Fetch with FormData body test in ServiceWorkerGlobalScope');
 
 test(function(t) {
     function runInfiniteFetchLoop() {
       fetch('dummy.html')
         .then(function() { runInfiniteFetchLoop(); });
     }
     runInfiniteFetchLoop();
   },
   'Destroying the execution context while fetch is happening should not ' +
       'cause a crash.');