Rename the PolicyManager to UpdateManager.

This change renames the PolicyManager class, directory, tests, etc,
to avoid confusion with libpolicy and its classes.

BUG=chromium:373551
TEST=emerged on link.
CQ-DEPEND=CL:I43081673c7ba409f02273197da7915537bde39c6

Change-Id: Iffa76caa3b95ecbbdba87ab01006d1d8ce35a27f
Reviewed-on: https://chromium-review.googlesource.com/201876
Tested-by: Alex Deymo <deymo@chromium.org>
Reviewed-by: David Zeuthen <zeuthen@chromium.org>
Commit-Queue: Alex Deymo <deymo@chromium.org>
diff --git a/update_manager/mock_policy.h b/update_manager/mock_policy.h
new file mode 100644
index 0000000..262b246
--- /dev/null
+++ b/update_manager/mock_policy.h
@@ -0,0 +1,40 @@
+// Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROMEOS_PLATFORM_UPDATE_ENGINE_UPDATE_MANAGER_MOCK_POLICY_H_
+#define CHROMEOS_PLATFORM_UPDATE_ENGINE_UPDATE_MANAGER_MOCK_POLICY_H_
+
+#include <gmock/gmock.h>
+
+#include "update_engine/update_manager/policy.h"
+
+namespace chromeos_update_manager {
+
+// A mocked implementation of Policy.
+class MockPolicy : public Policy {
+ public:
+  MockPolicy() {}
+  virtual ~MockPolicy() {}
+
+  // Policy overrides.
+  MOCK_CONST_METHOD4(UpdateCheckAllowed,
+                     EvalStatus(EvaluationContext*, State*, std::string*,
+                                UpdateCheckParams*));
+
+  MOCK_CONST_METHOD6(UpdateCanStart,
+                     EvalStatus(EvaluationContext*, State*, std::string*,
+                                UpdateCanStartResult*,
+                                const bool, const UpdateState&));
+
+  MOCK_CONST_METHOD4(UpdateCanStart,
+                     EvalStatus(EvaluationContext*, State*, std::string*,
+                                bool*));
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MockPolicy);
+};
+
+}  // namespace chromeos_update_manager
+
+#endif  // CHROMEOS_PLATFORM_UPDATE_ENGINE_UPDATE_MANAGER_MOCK_POLICY_H_