Check in generated Dart bindings and add presubmit script

mojo/dart/packages/mojo/lib/mojo/http_header.mojom.dart

Index: mojo/dart/packages/mojo/lib/mojo/http_header.mojom.dart
diff --git a/mojo/dart/packages/mojo/lib/mojo/http_header.mojom.dart b/mojo/dart/packages/mojo/lib/mojo/http_header.mojom.dart
new file mode 100644
index 0000000000000000000000000000000000000000..87ca9ebb422a156d846cb94086142b424ea164ab
--- /dev/null
+++ b/mojo/dart/packages/mojo/lib/mojo/http_header.mojom.dart
@@ -0,0 +1,89 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+library http_header_mojom;
+
+import 'dart:async';
+
+import 'package:mojo/bindings.dart' as bindings;
+import 'package:mojo/core.dart' as core;
+
+
+
+class HttpHeader extends bindings.Struct {
+  static const List<bindings.StructDataHeader> kVersions = const [
+    const bindings.StructDataHeader(24, 0)
+  ];
+  String name = null;
+  String value = null;
+
+  HttpHeader() : super(kVersions.last.size);
+
+  static HttpHeader deserialize(bindings.Message message) {
+    var decoder = new bindings.Decoder(message);
+    var result = decode(decoder);
+    if (decoder.excessHandles != null) {
+      decoder.excessHandles.forEach((h) => h.close());
+    }
+    return result;
+  }
+
+  static HttpHeader decode(bindings.Decoder decoder0) {
+    if (decoder0 == null) {
+      return null;
+    }
+    HttpHeader result = new HttpHeader();
+
+    var mainDataHeader = decoder0.decodeStructDataHeader();
+    if (mainDataHeader.version <= kVersions.last.version) {
+      // Scan in reverse order to optimize for more recent versions.
+      for (int i = kVersions.length - 1; i >= 0; --i) {
+        if (mainDataHeader.version >= kVersions[i].version) {
+          if (mainDataHeader.size == kVersions[i].size) {
+            // Found a match.
+            break;
+          }
+          throw new bindings.MojoCodecError(
+              'Header size doesn\'t correspond to known version size.');
+        }
+      }
+    } else if (mainDataHeader.size < kVersions.last.size) {
+      throw new bindings.MojoCodecError(
+        'Message newer than the last known version cannot be shorter than '
+        'required by the last known version.');
+    }
+    if (mainDataHeader.version >= 0) {
+      
+      result.name = decoder0.decodeString(8, false);
+    }
+    if (mainDataHeader.version >= 0) {
+      
+      result.value = decoder0.decodeString(16, false);
+    }
+    return result;
+  }
+
+  void encode(bindings.Encoder encoder) {
+    var encoder0 = encoder.getStructEncoderAtOffset(kVersions.last);
+    
+    encoder0.encodeString(name, 8, false);
+    
+    encoder0.encodeString(value, 16, false);
+  }
+
+  String toString() {
+    return "HttpHeader("
+           "name: $name" ", "
+           "value: $value" ")";
+  }
+
+  Map toJson() {
+    Map map = new Map();
+    map["name"] = name;
+    map["value"] = value;
+    return map;
+  }
+}
+
+