Undoing revert, cl is not the cause of gcm crash on canary.

components/copresence/test/fake_directive_handler.cc

+// 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.
+
+#include "components/copresence/test/fake_directive_handler.h"
+
+#include "components/copresence/proto/data.pb.h"
+
+namespace copresence {
+
+FakeDirectiveHandler::FakeDirectiveHandler() : DirectiveHandler(nullptr) {}
+
+FakeDirectiveHandler::~FakeDirectiveHandler() {}
+
+void FakeDirectiveHandler::AddDirective(const Directive& directive) {
+  added_directives_.push_back(directive.subscription_id());
+}
+
+void FakeDirectiveHandler::RemoveDirectives(const std::string& op_id) {
+  removed_directives_.push_back(op_id);
+}
+
+const std::string FakeDirectiveHandler::GetCurrentAudioToken(AudioType type)
+    const {
+  return type == AUDIBLE ? "current audible" : "current inaudible";
+}
+
+bool FakeDirectiveHandler::IsAudioTokenHeard(AudioType type) const {
+  return true;
+}
+
+}  // namespace copresence