bluetooth: Add characteristicvaluechanged event

content/shell/browser/layout_test/layout_test_bluetooth_adapter_provider.h

 // 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 CONTENT_SHELL_BROWSER_LAYOUT_TEST_LAYOUT_TEST_BLUETOOTH_ADAPTER_PROVIDER_H_
 #define CONTENT_SHELL_BROWSER_LAYOUT_TEST_LAYOUT_TEST_BLUETOOTH_ADAPTER_PROVIDER_H_
 
 #include "base/callback.h"
 #include "device/bluetooth/test/mock_bluetooth_adapter.h"
 #include "device/bluetooth/test/mock_bluetooth_device.h"
@@ skipping 150 matching lines @@
   static scoped_refptr<testing::NiceMock<device::MockBluetoothAdapter>>
   GetGenericAccessAdapter();
 
   // |HeartRateAdapter|
   // Inherits from |EmptyAdapter|
   // Internal Structure:
   //   - Heart Rate Device
   //      - Generic Access UUID (0x1800)
   //      - Heart Rate UUID (0x180D)
   //      - Heart Rate Service
+  //         - Body Sensor Location
+  //           - Mock Functions:
+  //              - Read: Calls GattCharacteristicValueChanged and success
+  //                      callback with [1] which corresponds to chest.
   //         - Heart Rate Measurement Characteristic:
   //            - Mock Functions:
-  //               - StartNotifySession: Calls success callback with a
+  //               - StartNotifySession: Sets a timer to call
+  //                 GattCharacteristicValueChanged every 10ms and calls success

[Jeffrey Yasskin, 2015/10/15 23:00:51]

Good hack. Can you file a bug to change this to an event-based notification, so
we don't delay by 10ms?

[ortuno, 2015/10/16 01:24:21]

Done.

+  //                 callback with a
   //                 BaseGATTNotifySession(characteristic_instance_id)
   static scoped_refptr<testing::NiceMock<device::MockBluetoothAdapter>>
   GetHeartRateAdapter();
 
   // |FailingConnectionsAdapter|
   // Inherits from |EmptyAdapter|
   // FailingConnectionsAdapter holds a device for each type of connection error
   // that can occur. This way we don’t need to create an adapter for each type
   // of error. Each of the devices has a service with a different UUID so that
   // they can be accessed by using different filters.
@@ skipping 241 matching lines @@
 
   // Notify Sessions
 
   // |BaseGATTNotifySession|(characteristic_identifier)
   // Mock Functions:
   //   - GetCharacteristicIdentifier:
   //       Returns: characteristic_identifier
   //   - IsActive:
   //       Returns: true
   //   - Stop:
-  //       Run callback.
+  //       Stops calling GattCharacteristicValueChanged and runs callback.
   static scoped_ptr<testing::NiceMock<device::MockBluetoothGattNotifySession>>
   GetBaseGATTNotifySession(const std::string& characteristic_identifier);
 
   // Helper functions:
 
   // errorUUID(alias) returns a UUID with the top 32 bits of
   // "00000000-97e5-4cd7-b9f1-f5a427670c59" replaced with the bits of |alias|.
   // For example, errorUUID(0xDEADBEEF) returns
   // "deadbeef-97e5-4cd7-b9f1-f5a427670c59". The bottom 96 bits of error UUIDs
   // were generated as a type 4 (random) UUID.
   static std::string errorUUID(uint32_t alias);
 
   // Function to turn an integer into an MAC address of the form
   // XX:XX:XX:XX:XX:XX. For example makeMACAddress(0xdeadbeef)
   // returns "00:00:DE:AD:BE:EF".
   static std::string makeMACAddress(uint64_t addr);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_SHELL_BROWSER_LAYOUT_TEST_LAYOUT_TEST_BLUETOOTH_ADAPTER_PROVIDER_H_