Implementing GATT connection/disconnect on OS X.

device/bluetooth/test/mock_bluetooth_cbperipheral_mac.h

Index: device/bluetooth/test/mock_bluetooth_cbperipheral_mac.h
diff --git a/device/bluetooth/test/mock_bluetooth_cbperipheral_mac.h b/device/bluetooth/test/mock_bluetooth_cbperipheral_mac.h
new file mode 100644
index 0000000000000000000000000000000000000000..6635efc6cd148d6c9bd71cb0ba956dc91cb21a6c
--- /dev/null
+++ b/device/bluetooth/test/mock_bluetooth_cbperipheral_mac.h
@@ -0,0 +1,26 @@
+// 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.
+
+#ifndef DEVICE_BLUETOOTH_MOCK_BLUETOOTH_CBPERIPHERAL_MAC_H_
+#define DEVICE_BLUETOOTH_MOCK_BLUETOOTH_CBPERIPHERAL_MAC_H_
+
+#include "base/mac/sdk_forward_declarations.h"
+#include "build/build_config.h"
+
+#import <CoreBluetooth/CoreBluetooth.h>
+
+// Class to mock a CBPeripheral. It is less convenient to use OCMock since
+// value of this class can change.

[msarda, 2016/02/22 14:01:06]

I still do not understand what "value of this class" refers to. Please be more
specific.  Maybe something like:
// This class mocks the behavior of a CBPeripheral.
// Note: Using real mock objects was preferred instead of the
// standard mocking using OCMock because ...

[jlebel, 2016/02/24 16:54:54]

Done.

+@interface MockCBPeripheral : NSObject
+
+@property(nonatomic, readonly) CBPeripheralState state;
+@property(nonatomic, readonly) NSUUID* identifier;
+@property(nonatomic, readonly) NSString* name;
+
+- (instancetype)initWithIdentifier:(NSUUID*)identifier;
+- (void)setState:(CBPeripheralState)state;
+
+@end
+
+#endif  // DEVICE_BLUETOOTH_MOCK_BLUETOOTH_CBPERIPHERAL_MAC_H_