bluetooth: mac: add connected LE devices to chooser

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 "device/bluetooth/test/mock_bluetooth_central_manager_mac.h"
 
 #import "device/bluetooth/test/bluetooth_test_mac.h"
 #import "device/bluetooth/test/mock_bluetooth_cbperipheral_mac.h"
 
-@implementation MockCentralManager
+@implementation MockCentralManager {
+  NSMutableArray* _connectedMockPeripheral;
+}
 
 @synthesize scanForPeripheralsCallCount = _scanForPeripheralsCallCount;
 @synthesize stopScanCallCount = _stopScanCallCount;
 @synthesize delegate = _delegate;
 @synthesize state = _state;
 @synthesize bluetoothTestMac = _bluetoothTestMac;
 
+- (instancetype)init {
+  self = [super init];
+  if (self) {
+    _connectedMockPeripheral = [[NSMutableArray alloc] init];

[ortuno, 2016/09/28 23:15:52]

What do you think of the following ideas:

Instead of addConnectedMockPeripherals, would a
setConnectedMockPeripherals(NSArray*) make more sense? It would allow tests to
explicitly set all the devices rather than adding and removing each manually.

Would it make sense to have a "connected_peripherals_" scoped_nsobject<NSArray>
member? We would just return it in retrieveConnectedPeripherals.

[jlebel, 2016/10/05 14:09:41]

Done.

+  }
+  return self;
+}
+
+- (void)dealloc {
+  [_connectedMockPeripheral release];
+  [super dealloc];
+}
+
 - (BOOL)isKindOfClass:(Class)aClass {
   if (aClass == [CBCentralManager class] ||
       [aClass isSubclassOfClass:[CBCentralManager class]]) {
     return YES;
   }
   return [super isKindOfClass:aClass];
 }
 
 - (BOOL)isMemberOfClass:(Class)aClass {
   if (aClass == [CBCentralManager class] ||
@@ skipping 18 matching lines @@
     _bluetoothTestMac->OnFakeBluetoothDeviceConnectGattCalled();
   }
 }
 
 - (void)cancelPeripheralConnection:(CBPeripheral*)peripheral {
   if (_bluetoothTestMac) {
     _bluetoothTestMac->OnFakeBluetoothGattDisconnect();
   }
 }
 
+- (NSArray*)retrieveConnectedPeripheralsWithServices:(NSArray*)services {
+  return [[_connectedMockPeripheral copy] autorelease];
+}
+
+- (void)addConnectedMockPeripheral:(MockCBPeripheral*)peripheral {
+  [_connectedMockPeripheral addObject:peripheral];
+}
+
 @end