Revert of Update mojo sdk to rev afb4440fd5a10cba980878c326180b7ad7960480

mojo/public/dart/src/buffer.dart

Index: mojo/public/dart/src/buffer.dart
diff --git a/mojo/public/dart/src/buffer.dart b/mojo/public/dart/src/buffer.dart
deleted file mode 100644
index a00838e466dc4db5721855dc3785b2a9110cfe8b..0000000000000000000000000000000000000000
--- a/mojo/public/dart/src/buffer.dart
+++ /dev/null
@@ -1,107 +0,0 @@
-// 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.
-
-part of core;
-
-class _MojoSharedBufferNatives {
-  static List Create(int num_bytes, int flags)
-      native "MojoSharedBuffer_Create";
-
-  static List Duplicate(int buffer_handle, int flags)
-      native "MojoSharedBuffer_Duplicate";
-
-  static List Map(int buffer_handle, int offset, int num_bytes, int flags)
-      native "MojoSharedBuffer_Map";
-
-  static int Unmap(ByteData buffer)
-      native "MojoSharedBuffer_Unmap";
-}
-
-
-class MojoSharedBuffer {
-  static const int CREATE_FLAG_NONE = 0;
-  static const int DUPLICATE_FLAG_NONE = 0;
-  static const int MAP_FLAG_NONE = 0;
-
-  RawMojoHandle handle;
-  MojoResult status;
-  ByteData mapping;
-
-  MojoSharedBuffer._() {
-    handle = null;
-    status = MojoResult.OK;
-    mapping = null;
-  }
-
-  factory MojoSharedBuffer(int num_bytes, [int flags = 0]) {
-    List result = _MojoSharedBufferNatives.Create(num_bytes, flags);
-    if (result == null) {
-      return null;
-    }
-    assert((result is List) && (result.length == 2));
-    var r = new MojoResult(result[0]);
-    if (!r.isOk) {
-      return null;
-    }
-
-    MojoSharedBuffer buf = new MojoSharedBuffer._();
-    buf.status = r;
-    buf.handle = new RawMojoHandle(result[1]);
-    buf.mapping = null;
-    return buf;
-  }
-
-  factory MojoSharedBuffer.duplicate(MojoSharedBuffer msb, [int flags = 0]) {
-    List result = _MojoSharedBufferNatives.Duplicate(msb.handle.h, flags);
-    if (result == null) {
-      return null;
-    }
-    assert((result is List) && (result.length == 2));
-    var r = new MojoResult(result[0]);
-    if(!r.isOk) {
-      return null;
-    }
-
-    MojoSharedBuffer dupe = new MojoSharedBuffer._();
-    dupe.status = r;
-    dupe.handle = new RawMojoHandle(result[1]);
-    dupe.mapping = msb.mapping;
-    return dupe;
-  }
-
-  MojoResult close() {
-    if (handle == null) {
-      status = MojoResult.INVALID_ARGUMENT;
-      return status;
-    }
-    MojoResult r = handle.close();
-    status = r;
-    mapping = null;
-    return status;
-  }
-
-  MojoResult map(int offset, int num_bytes, [int flags = 0]) {
-    if (handle == null) {
-      status = MojoResult.INVALID_ARGUMENT;
-      return status;
-    }
-    List result = _MojoSharedBufferNatives.Map(
-        handle.h, offset, num_bytes, flags);
-    if (result == null) {
-      status = MojoResult.INVALID_ARGUMENT;
-      return status;
-    }
-    assert((result is List) && (result.length == 2));
-    status = new MojoResult(result[0]);
-    mapping = result[1];
-    return status;
-  }
-
-  MojoResult unmap() {
-    int r = _MojoSharedBufferNatives.Unmap(mapping);
-    status = new MojoResult(r);
-    mapping = null;
-    return status;
-  }
-}