The first 3 BluetoothTest.* unit tests now running on Mac as well.

device/bluetooth/test/mock_bluetooth_central_manager_mac.mm

 // 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.
 
 #import "mock_bluetooth_central_manager_mac.h"
 
 @implementation MockCentralManager
 
 @synthesize scanForPeripheralsCallCount = _scanForPeripheralsCallCount;
 @synthesize stopScanCallCount = _stopScanCallCount;
 @synthesize delegate = _delegate;
+@synthesize state = _state;
 
 - (instancetype)init {
   _scanForPeripheralsCallCount = 0;
   _stopScanCallCount = 0;
   return self;
 }
 
 - (instancetype)initWithDelegate:(id<CBCentralManagerDelegate>)delegate
                            queue:(dispatch_queue_t)queue
                          options:(NSDictionary*)options {
   return [self init];
 }
 
-- (CBCentralManagerState)state {
-  return CBCentralManagerStatePoweredOn;
-}
-
 - (void)scanForPeripheralsWithServices:(NSArray*)serviceUUIDs
                                options:(NSDictionary*)options {
   _scanForPeripheralsCallCount++;
 }
 
 - (void)stopScan {
   _stopScanCallCount++;
 }
 
 @end