Revert "Use native async/await support in pub."

sdk/lib/_internal/pub_generated/lib/src/http.dart

Index: sdk/lib/_internal/pub_generated/lib/src/http.dart
diff --git a/sdk/lib/_internal/pub/lib/src/http.dart b/sdk/lib/_internal/pub_generated/lib/src/http.dart
similarity index 81%
copy from sdk/lib/_internal/pub/lib/src/http.dart
copy to sdk/lib/_internal/pub_generated/lib/src/http.dart
index 4fe118eb25c238e8df4dc24be2c8b0757e6f8982..eea72ae86b47fa6c76e9e25cdc2d8d0b332e372d 100644
--- a/sdk/lib/_internal/pub/lib/src/http.dart
+++ b/sdk/lib/_internal/pub_generated/lib/src/http.dart
@@ -31,7 +31,9 @@ final _CENSORED_FIELDS = const ['refresh_token', 'authorization'];
 /// The Accept header tells pub.dartlang.org which version of the API we're
 /// expecting, so it can either serve that version or give us a 406 error if
 /// it's not supported.
-final PUB_API_HEADERS = const {'Accept': 'application/vnd.pub.v2+json'};
+final PUB_API_HEADERS = const {
+  'Accept': 'application/vnd.pub.v2+json'
+};
 
 /// An HTTP client that transforms 40* errors and socket exceptions into more
 /// user-friendly error messages.
@@ -75,29 +77,29 @@ class _PubHttpClient extends http.BaseClient {
       // 401 responses should be handled by the OAuth2 client. It's very
       // unlikely that they'll be returned by non-OAuth2 requests. We also want
       // to pass along 400 responses from the token endpoint.
-      var tokenRequest = urisEqual(
-          streamedResponse.request.url, oauth2.tokenEndpoint);
+      var tokenRequest =
+          urisEqual(streamedResponse.request.url, oauth2.tokenEndpoint);
       if (status < 400 || status == 401 || (status == 400 && tokenRequest)) {
         return streamedResponse;
       }
 
       if (status == 406 &&
           request.headers['Accept'] == PUB_API_HEADERS['Accept']) {
-        fail("Pub ${sdk.version} is incompatible with the current version of "
-                 "${request.url.host}.\n"
-             "Upgrade pub to the latest version and try again.");
+        fail(
+            "Pub ${sdk.version} is incompatible with the current version of "
+                "${request.url.host}.\n" "Upgrade pub to the latest version and try again.");
       }
 
       if (status == 500 &&
           (request.url.host == "pub.dartlang.org" ||
-          request.url.host == "storage.googleapis.com")) {
-        var message = "HTTP error 500: Internal Server Error at "
-            "${request.url}.";
+              request.url.host == "storage.googleapis.com")) {
+        var message =
+            "HTTP error 500: Internal Server Error at " "${request.url}.";
 
         if (request.url.host == "pub.dartlang.org" ||
             request.url.host == "storage.googleapis.com") {
-          message += "\nThis is likely a transient error. Please try again "
-              "later.";
+          message +=
+              "\nThis is likely a transient error. Please try again " "later.";
         }
 
         fail(message);
@@ -107,26 +109,31 @@ class _PubHttpClient extends http.BaseClient {
         throw new PubHttpException(response);
       });
     }).catchError((error, stackTrace) {
-      if (error is SocketException &&
-          error.osError != null) {
+      if (error is SocketException && error.osError != null) {
         if (error.osError.errorCode == 8 ||
             error.osError.errorCode == -2 ||
             error.osError.errorCode == -5 ||
             error.osError.errorCode == 11001 ||
             error.osError.errorCode == 11004) {
-          fail('Could not resolve URL "${request.url.origin}".',
-              error, stackTrace);
+          fail(
+              'Could not resolve URL "${request.url.origin}".',
+              error,
+              stackTrace);
         } else if (error.osError.errorCode == -12276) {
-          fail('Unable to validate SSL certificate for '
-              '"${request.url.origin}".',
-              error, stackTrace);
+          fail(
+              'Unable to validate SSL certificate for ' '"${request.url.origin}".',
+              error,
+              stackTrace);
         }
       }
       throw error;
     });
 
     if (timeoutLength == null) return future;
-    return timeout(future, timeoutLength, request.url,
+    return timeout(
+        future,
+        timeoutLength,
+        request.url,
         'fetching URL "${request.url}"');
   }
 
@@ -134,8 +141,8 @@ class _PubHttpClient extends http.BaseClient {
   void _logRequest(http.BaseRequest request) {
     var requestLog = new StringBuffer();
     requestLog.writeln("HTTP ${request.method} ${request.url}");
-    request.headers.forEach((name, value) =>
-        requestLog.writeln(_logField(name, value)));
+    request.headers.forEach(
+        (name, value) => requestLog.writeln(_logField(name, value)));
 
     if (request.method == 'POST') {
       var contentTypeString = request.headers[HttpHeaders.CONTENT_TYPE];
@@ -144,16 +151,16 @@ class _PubHttpClient extends http.BaseClient {
       if (request is http.MultipartRequest) {
         requestLog.writeln();
         requestLog.writeln("Body fields:");
-        request.fields.forEach((name, value) =>
-            requestLog.writeln(_logField(name, value)));
+        request.fields.forEach(
+            (name, value) => requestLog.writeln(_logField(name, value)));
 
         // TODO(nweiz): make MultipartRequest.files readable, and log them?
       } else if (request is http.Request) {
         if (contentType.value == 'application/x-www-form-urlencoded') {
           requestLog.writeln();
           requestLog.writeln("Body fields:");
-          request.bodyFields.forEach((name, value) =>
-              requestLog.writeln(_logField(name, value)));
+          request.bodyFields.forEach(
+              (name, value) => requestLog.writeln(_logField(name, value)));
         } else if (contentType.value == 'text/plain' ||
             contentType.value == 'application/json') {
           requestLog.write(request.body);
@@ -172,11 +179,12 @@ class _PubHttpClient extends http.BaseClient {
     var responseLog = new StringBuffer();
     var request = response.request;
     var stopwatch = _requestStopwatches.remove(request)..stop();
-    responseLog.writeln("HTTP response ${response.statusCode} "
-        "${response.reasonPhrase} for ${request.method} ${request.url}");
+    responseLog.writeln(
+        "HTTP response ${response.statusCode} "
+            "${response.reasonPhrase} for ${request.method} ${request.url}");
     responseLog.writeln("took ${stopwatch.elapsed}");
-    response.headers.forEach((name, value) =>
-        responseLog.writeln(_logField(name, value)));
+    response.headers.forEach(
+        (name, value) => responseLog.writeln(_logField(name, value)));
 
     log.fine(responseLog.toString().trim());
   }
@@ -249,7 +257,7 @@ Map parseJsonResponse(http.Response response) {
 
 /// Throws an error describing an invalid response from the server.
 void invalidServerResponse(http.Response response) =>
-  fail('Invalid server response:\n${response.body}');
+    fail('Invalid server response:\n${response.body}');
 
 /// Exception thrown when an HTTP operation fails.
 class PubHttpException implements Exception {
@@ -257,6 +265,6 @@ class PubHttpException implements Exception {
 
   const PubHttpException(this.response);
 
-  String toString() => 'HTTP error ${response.statusCode}: '
-      '${response.reasonPhrase}';
+  String toString() =>
+      'HTTP error ${response.statusCode}: ' '${response.reasonPhrase}';
 }