bluetooth: Browser-side implementation of getCharacteristic

content/browser/bluetooth/bluetooth_dispatcher_host.h

Index: content/browser/bluetooth/bluetooth_dispatcher_host.h
diff --git a/content/browser/bluetooth/bluetooth_dispatcher_host.h b/content/browser/bluetooth/bluetooth_dispatcher_host.h
index bd21686020a2766de0bc112530f90a71418f08c1..fff36712a7d6e60c3afb851c8b89d6359d6bd00b 100644
--- a/content/browser/bluetooth/bluetooth_dispatcher_host.h
+++ b/content/browser/bluetooth/bluetooth_dispatcher_host.h
@@ -57,6 +57,10 @@ class CONTENT_EXPORT BluetoothDispatcherHost final
                            int request_id,
                            const std::string& device_instance_id,
                            const std::string& service_uuid);
+  void OnGetCharacteristic(int thread_id,
+                           int request_id,
+                           const std::string& service_instance_id,
+                           const std::string& characteristic_uuid);
 
   // Callbacks for BluetoothAdapter::StartDiscoverySession.
   void OnDiscoverySessionStarted(
@@ -95,6 +99,10 @@ class CONTENT_EXPORT BluetoothDispatcherHost final
                             const std::string& device_instance_id,
                             const std::string& service_uuid);
 
+  // Maps to get the object's parent based on it's instanceID

[Jeffrey Yasskin, 2015/06/02 22:12:29]

We could also make the renderer pass both a
service_id/characteristic_id/descriptor_id and device_id when it calls over to
the browser, which would allow service_ids to only be unique within a device,
but it may not be worth it.

[ortuno, 2015/06/03 20:27:22]

Hmm not sure how passing both a service_id and a device_id allows service_id to
be unique within a device. In general the identifiers are unique per adapter.

+  // Map of service_instance_id to device_instance_id.
+  std::map<std::string, std::string> service_to_device_;
+
   // Defines how long to scan for and how long to discover services for.
   int current_delay_time_;