Add media device attach notification mechanism.

Split out from https://chromiumcodereview.appspot.com/9363008/

BUG=110400
TEST=NONE


Review URL: http://codereview.chromium.org/9580018

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@124763 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 53 insertions, 0 deletions

diff --git a/base/test/mock_devices_changed_observer.cc b/base/test/mock_devices_changed_observer.cc
new file mode 100644
index 0000000..25ff613
--- /dev/null
+++ b/base/test/mock_devices_changed_observer.cc
@@ -0,0 +1,17 @@
+// Copyright (c) 2012 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 "base/test/mock_devices_changed_observer.h"
+
+#include "base/file_path.h"
+
+namespace base {
+
+MockDevicesChangedObserver::MockDevicesChangedObserver() {
+}
+
+MockDevicesChangedObserver::~MockDevicesChangedObserver() {
+}
+
+}  // namespace base
diff --git a/base/test/mock_devices_changed_observer.h b/base/test/mock_devices_changed_observer.h
new file mode 100644
index 0000000..9964f06
--- /dev/null
+++ b/base/test/mock_devices_changed_observer.h
@@ -0,0 +1,36 @@
+// Copyright (c) 2012 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.
+
+#ifndef BASE_TEST_MOCK_DEVICES_CHANGED_OBSERVER_H_
+#define BASE_TEST_MOCK_DEVICES_CHANGED_OBSERVER_H_
+
+#include <string>
+
+#include "base/system_monitor/system_monitor.h"
+#include "testing/gmock/include/gmock/gmock.h"
+
+class FilePath;
+
+namespace base {
+
+class MockDevicesChangedObserver
+  : public base::SystemMonitor::DevicesChangedObserver {
+ public:
+  MockDevicesChangedObserver();
+  ~MockDevicesChangedObserver();
+
+  MOCK_METHOD0(OnDevicesChanged, void());
+  MOCK_METHOD3(OnMediaDeviceAttached,
+               void(const base::SystemMonitor::DeviceIdType& id,
+                    const std::string& name,
+                    const FilePath& path));
+  MOCK_METHOD1(OnMediaDeviceDetached,
+               void(const base::SystemMonitor::DeviceIdType& id));
+
+  DISALLOW_COPY_AND_ASSIGN(MockDevicesChangedObserver);
+};
+
+}  // namespace base
+
+#endif  // BASE_TEST_MOCK_DEVICES_CHANGED_OBSERVER_H_