Adds a mock for component_updater::ComponentUpdateService

This can be used to test that a component registers itself properly.

Its first intended use is with some upcoming tests for a new Certificate
Transparency component, modelled after CRLSetFetcher, which registers itself
only after attempting to read version information from disk.

Review URL: https://codereview.chromium.org/1570873003

Cr-Commit-Position: refs/heads/master@{#368894}

3 files changed, 75 insertions, 0 deletions

diff --git a/components/component_updater/BUILD.gn b/components/component_updater/BUILD.gn
index 1f9cfb4..45cbc32 100644
--- a/components/component_updater/BUILD.gn
+++ b/components/component_updater/BUILD.gn
@@ -32,6 +32,20 @@ source_set("component_updater") {
   ]
 }
 
+source_set("test_support") {
+  testonly = true
+  sources = [
+    "mock_component_updater_service.cc",
+    "mock_component_updater_service.h",
+  ]
+
+  public_deps = [
+    ":component_updater",
+    "//base",
+    "//testing/gmock",
+  ]
+}
+
 source_set("unit_tests") {
   testonly = true
   sources = [
diff --git a/components/component_updater/mock_component_updater_service.cc b/components/component_updater/mock_component_updater_service.cc
new file mode 100644
index 0000000..9cadb37
--- /dev/null
+++ b/components/component_updater/mock_component_updater_service.cc
@@ -0,0 +1,13 @@
+// Copyright 2015 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/component_updater/mock_component_updater_service.h"
+
+namespace component_updater {
+
+MockComponentUpdateService::MockComponentUpdateService() {}
+
+MockComponentUpdateService::~MockComponentUpdateService() {}
+
+}  // namespace component_updater
diff --git a/components/component_updater/mock_component_updater_service.h b/components/component_updater/mock_component_updater_service.h
new file mode 100644
index 0000000..f8d1447
--- /dev/null
+++ b/components/component_updater/mock_component_updater_service.h
@@ -0,0 +1,48 @@
+// Copyright 2015 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.
+
+// Automatically generated by testing/gmock/scripts/generator/gmock_gen.py.
+// Manual edits:
+// - Copyright header added.
+// - Includes and inclusion guard added.
+// - Constructor and destructor added to satisfy chromium-style checker.
+
+#ifndef COMPONENTS_COMPONENT_UPDATER_MOCK_COMPONENT_UPDATER_SERVICE_H_
+#define COMPONENTS_COMPONENT_UPDATER_MOCK_COMPONENT_UPDATER_SERVICE_H_
+
+#include "base/callback.h"
+#include "base/sequenced_task_runner.h"
+#include "components/component_updater/component_updater_service.h"
+#include "testing/gmock/include/gmock/gmock.h"
+
+namespace component_updater {
+
+class MockComponentUpdateService : public ComponentUpdateService {
+ public:
+  MockComponentUpdateService();
+  ~MockComponentUpdateService() override;
+
+  MOCK_METHOD1(AddObserver,
+      void(Observer* observer));
+  MOCK_METHOD1(RemoveObserver,
+      void(Observer* observer));
+  MOCK_METHOD1(RegisterComponent,
+      bool(const CrxComponent& component));
+  MOCK_METHOD1(UnregisterComponent,
+      bool(const std::string& id));
+  MOCK_CONST_METHOD0(GetComponentIDs,
+      std::vector<std::string>());
+  MOCK_METHOD0(GetOnDemandUpdater,
+      OnDemandUpdater&());
+  MOCK_METHOD2(MaybeThrottle,
+      void(const std::string& id, const base::Closure& callback));
+  MOCK_METHOD0(GetSequencedTaskRunner,
+      scoped_refptr<base::SequencedTaskRunner>());
+  MOCK_CONST_METHOD2(GetComponentDetails,
+      bool(const std::string& id, CrxUpdateItem* item));
+};
+
+}  // namespace component_updater
+
+#endif  // COMPONENTS_COMPONENT_UPDATER_MOCK_COMPONENT_UPDATER_SERVICE_H_