Converted Observatory megamorphiccache-view element

runtime/observatory/tests/observatory_ui/mocks/repositories/megamorphiccache.dart

Index: runtime/observatory/tests/observatory_ui/mocks/repositories/megamorphiccache.dart
diff --git a/runtime/observatory/tests/observatory_ui/mocks/repositories/megamorphiccache.dart b/runtime/observatory/tests/observatory_ui/mocks/repositories/megamorphiccache.dart
new file mode 100644
index 0000000000000000000000000000000000000000..340bad3fde4a13f273743c3c94b496e6307b74b0
--- /dev/null
+++ b/runtime/observatory/tests/observatory_ui/mocks/repositories/megamorphiccache.dart
@@ -0,0 +1,23 @@
+// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// for details. 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 mocks;
+
+typedef Future<M.MegamorphicCache>
+        MegamorphicCacheRepositoryMockCallback(M.IsolateRef isolate, String id);
+
+class MegamorphicCacheRepositoryMock implements M.MegamorphicCacheRepository {
+  final MegamorphicCacheRepositoryMockCallback _get;
+
+  MegamorphicCacheRepositoryMock(
+    {MegamorphicCacheRepositoryMockCallback getter})
+    : _get = getter;
+
+  Future<M.MegamorphicCache> get(M.IsolateRef isolate, String id, {int count}){
+    if (_get != null) {
+      return _get(isolate, id);
+    }
+    return new Future.value(null);
+  }
+}