bluetooth: mac: Initial BluetoothRemoteGattCharacteristicMac implementation

device/bluetooth/test/mock_bluetooth_cbperipheral_mac.mm

Index: device/bluetooth/test/mock_bluetooth_cbperipheral_mac.mm
diff --git a/device/bluetooth/test/mock_bluetooth_cbperipheral_mac.mm b/device/bluetooth/test/mock_bluetooth_cbperipheral_mac.mm
index a4fa499dca958d7585a54fb3aaa91e3132aa78c9..3f36cc7142bec020ff87c97c93fa361e15f1a439 100644
--- a/device/bluetooth/test/mock_bluetooth_cbperipheral_mac.mm
+++ b/device/bluetooth/test/mock_bluetooth_cbperipheral_mac.mm
@@ -84,6 +84,11 @@ using base::scoped_nsobject;
   if (_bluetoothTestMac) {
     _bluetoothTestMac->OnFakeBluetoothServiceDiscovery();
   }
+  [_delegate peripheral:self.peripheral didDiscoverServices:nil];
+}
+
+- (void)discoverCharacteristics:(NSArray*)characteristics
+                     forService:(CBService*)service {
 }
 
 - (void)removeAllServices {
@@ -95,8 +100,10 @@ using base::scoped_nsobject;
     _services.reset([[NSMutableArray alloc] init]);
   }
   for (CBUUID* uuid in services) {
-    base::scoped_nsobject<MockCBService> service(
-        [[MockCBService alloc] initWithCBUUID:uuid primary:YES]);
+    base::scoped_nsobject<MockCBService> service([[MockCBService alloc]
+        initWithPeripheral:self.peripheral
+                    CBUUID:uuid
+                   primary:YES]);
     [_services.get() addObject:service.get().service];
   }
 }
@@ -110,6 +117,18 @@ using base::scoped_nsobject;
                                                    base::scoped_policy::RETAIN);
   DCHECK(serviceToRemove);
   [_services.get() removeObject:serviceToRemove];
+  [self didModifyServices:@[ serviceToRemove ]];
+}
+
+- (void)didDiscoverCharactericsForAllServices {
+  for (CBService* service in _services.get()) {
+    [_delegate peripheral:self.peripheral
+        didDiscoverCharacteristicsForService:service
+                                       error:nil];
+  }
+}
+
+- (void)didModifyServices:(NSArray*)invalidatedServices {
   // -[CBPeripheralDelegate peripheral:didModifyServices:] is only available
   // with 10.9. It is safe to call this method (even if chrome is running on
   // 10.8) since WebBluetooth is enabled only with 10.10.
@@ -117,7 +136,7 @@ using base::scoped_nsobject;
       [_delegate respondsToSelector:@selector(peripheral:didModifyServices:)]);
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wpartial-availability"
-  [_delegate peripheral:self.peripheral didModifyServices:@[ serviceToRemove ]];
+  [_delegate peripheral:self.peripheral didModifyServices:invalidatedServices];
 #pragma clang diagnostic pop
 }