Expose stable_device_id in audio extension apis.

BUG=466768

Review URL: https://codereview.chromium.org/1584613003

Cr-Commit-Position: refs/heads/master@{#370730}

extensions/browser/api/audio/audio_apitest.cc

@@ -25,15 +25,21 @@ using chromeos::AudioNode;
 using chromeos::AudioNodeList;
 
 const uint64_t kJabraSpeaker1Id = 30001;
+const uint64_t kJabraSpeaker1StableDeviceId = 80001;
 const uint64_t kJabraSpeaker2Id = 30002;
+const uint64_t kJabraSpeaker2StableDeviceId = 80002;
 const uint64_t kHDMIOutputId = 30003;
+const uint64_t kHDMIOutputStabeDevicelId = 80003;
 const uint64_t kJabraMic1Id = 40001;
+const uint64_t kJabraMic1StableDeviceId = 90001;
 const uint64_t kJabraMic2Id = 40002;
+const uint64_t kJabraMic2StableDeviceId = 90002;
 const uint64_t kWebcamMicId = 40003;
+const uint64_t kWebcamMicStableDeviceId = 90003;
 
 const AudioNode kJabraSpeaker1(false,
                                kJabraSpeaker1Id,
-                               kJabraSpeaker1Id,
+                               kJabraSpeaker1StableDeviceId,
                                "Jabra Speaker",
                                "USB",
                                "Jabra Speaker 1",
@@ -42,7 +48,7 @@ const AudioNode kJabraSpeaker1(false,
 
 const AudioNode kJabraSpeaker2(false,
                                kJabraSpeaker2Id,
-                               kJabraSpeaker2Id,
+                               kJabraSpeaker2StableDeviceId,
                                "Jabra Speaker",
                                "USB",
                                "Jabra Speaker 2",
@@ -51,7 +57,7 @@ const AudioNode kJabraSpeaker2(false,
 
 const AudioNode kHDMIOutput(false,
                             kHDMIOutputId,
-                            kHDMIOutputId,
+                            kHDMIOutputStabeDevicelId,
                             "HDMI output",
                             "HDMI",
                             "HDA Intel MID",
@@ -60,7 +66,7 @@ const AudioNode kHDMIOutput(false,
 
 const AudioNode kJabraMic1(true,
                            kJabraMic1Id,
-                           kJabraMic1Id,
+                           kJabraMic1StableDeviceId,
                            "Jabra Mic",
                            "USB",
                            "Jabra Mic 1",
@@ -69,7 +75,7 @@ const AudioNode kJabraMic1(true,
 
 const AudioNode kJabraMic2(true,
                            kJabraMic2Id,
-                           kJabraMic2Id,
+                           kJabraMic2StableDeviceId,
                            "Jabra Mic",
                            "USB",
                            "Jabra Mic 2",
@@ -78,7 +84,7 @@ const AudioNode kJabraMic2(true,
 
 const AudioNode kUSBCameraMic(true,
                               kWebcamMicId,
-                              kWebcamMicId,
+                              kWebcamMicStableDeviceId,
                               "Webcam Mic",
                               "USB",
                               "Logitech Webcam",

extensions/browser/api/audio/audio_service_chromeos.cc

@@ -273,8 +273,8 @@ void AudioServiceImpl::NotifyDevicesChanged() {
             ? cras_audio_handler_->GetOutputVolumePercentForDevice(
                   devices[i].id)
             : cras_audio_handler_->GetInputGainPercentForDevice(devices[i].id);
-    // TODO(jennyz): Set stable_device_id once it is implemented.
-    // See crbug.com/466768.
+    info->stable_device_id.reset(
+        new std::string(base::Uint64ToString(devices[i].stable_device_id)));
 
     devices_info_list.push_back(info);
   }

extensions/test/data/api_test/audio/add_nodes/background.js

@@ -5,6 +5,7 @@
 chrome.audio.OnDevicesChanged.addListener(function (devices) {
   if (devices.length === 3) {
     if (devices[0].id != "30001" ||
+        devices[0].stableDeviceId != "80001" ||
         devices[0].isInput != false ||
         devices[0].deviceType != "USB" ||
         devices[0].deviceName != "Jabra Speaker" ||
@@ -14,6 +15,7 @@ chrome.audio.OnDevicesChanged.addListener(function (devices) {
       chrome.test.sendMessage("failure");
     }
     if (devices[1].id != "30002" ||
+        devices[1].stableDeviceId != "80002" ||
         devices[1].isInput != false ||
         devices[1].deviceType != "USB" ||
         devices[1].deviceName != "Jabra Speaker" ||
@@ -23,6 +25,7 @@ chrome.audio.OnDevicesChanged.addListener(function (devices) {
       chrome.test.sendMessage("failure");
     }
     if (devices[2].id != "30003" ||
+        devices[2].stableDeviceId != "80003" ||
         devices[2].isInput != false ||
         devices[2].deviceType != "HDMI" ||
         devices[2].deviceName != "HDMI output" ||

extensions/test/data/api_test/audio/remove_nodes/background.js

@@ -5,6 +5,7 @@
 chrome.audio.OnDevicesChanged.addListener(function (devices) {
   if (devices.length === 2) {
     if (devices[0].id != "40001" ||
+      devices[0].stableDeviceId != "90001" ||
       devices[0].isInput != true ||
       devices[0].deviceType != "USB" ||
       devices[0].deviceName != "Jabra Mic" ||
@@ -14,6 +15,7 @@ chrome.audio.OnDevicesChanged.addListener(function (devices) {
       chrome.test.sendMessage("failure");
     }
     if (devices[1].id != "40002" ||
+        devices[1].stableDeviceId != "90002" ||
         devices[1].isInput != true ||
         devices[1].deviceType != "USB" ||
         devices[1].deviceName != "Jabra Mic" ||