bluetooth: mac: add connected LE devices to chooser

device/bluetooth/test/mock_bluetooth_central_manager_mac.mm

Index: device/bluetooth/test/mock_bluetooth_central_manager_mac.mm
diff --git a/device/bluetooth/test/mock_bluetooth_central_manager_mac.mm b/device/bluetooth/test/mock_bluetooth_central_manager_mac.mm
index fbb0dff41e75d315a5044a6e61dde508fe7382fd..ced601c5eb2649a0fc0bb8613dc6ec52b41cae7c 100644
--- a/device/bluetooth/test/mock_bluetooth_central_manager_mac.mm
+++ b/device/bluetooth/test/mock_bluetooth_central_manager_mac.mm
@@ -7,7 +7,9 @@
 #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;
@@ -15,6 +17,19 @@
 @synthesize state = _state;
 @synthesize bluetoothTestMac = _bluetoothTestMac;
 
+- (instancetype)init {
+  self = [super init];
+  if (self) {
+    _connectedMockPeripheral = [[NSMutableArray alloc] init];
+  }
+  return self;
+}
+
+- (void)dealloc {
+  [_connectedMockPeripheral release];
+  [super dealloc];
+}
+
 - (BOOL)isKindOfClass:(Class)aClass {
   if (aClass == [CBCentralManager class] ||
       [aClass isSubclassOfClass:[CBCentralManager class]]) {
@@ -53,4 +68,12 @@
   }
 }
 
+- (NSArray*)retrieveConnectedPeripheralsWithServices:(NSArray*)services {
+  return [[_connectedMockPeripheral copy] autorelease];
+}
+
+- (void)addConnectedMockPeripheral:(MockCBPeripheral*)peripheral {
+  [_connectedMockPeripheral addObject:peripheral];
+}
+
 @end