Add queryForNewLocalDevices to gcdPrivate

chrome/browser/extensions/api/gcd_private/gcd_private_api.cc

Index: chrome/browser/extensions/api/gcd_private/gcd_private_api.cc
diff --git a/chrome/browser/extensions/api/gcd_private/gcd_private_api.cc b/chrome/browser/extensions/api/gcd_private/gcd_private_api.cc
index 08c1abefec5c75677136b0a7f788efb2c674ce37..87e923184e45b83097b078810493edc12c69af30 100644
--- a/chrome/browser/extensions/api/gcd_private/gcd_private_api.cc
+++ b/chrome/browser/extensions/api/gcd_private/gcd_private_api.cc
@@ -154,6 +154,15 @@ void GcdPrivateAPI::DeviceCacheFlushed() {
   known_devices_.clear();
 }
 
+bool GcdPrivateAPI::QueryForDevices() {
+  if (!privet_device_lister_)
+    return false;
+
+  privet_device_lister_->DiscoverNewDevices(true);
+
+  return true;
+}
+
 // static
 void GcdPrivateAPI::SetGCDApiFlowFactoryForTests(
     GCDApiFlowFactoryForTests* factory) {
@@ -235,6 +244,29 @@ void GcdPrivateGetCloudDeviceListFunction::CheckListingDone() {
   Release();
 }
 
+GcdPrivateQueryForNewLocalDevicesFunction::
+    GcdPrivateQueryForNewLocalDevicesFunction() {
+}
+
+GcdPrivateQueryForNewLocalDevicesFunction::
+    ~GcdPrivateQueryForNewLocalDevicesFunction() {
+}
+
+bool GcdPrivateQueryForNewLocalDevicesFunction::RunSync() {
+  GcdPrivateAPI* gcd_api =
+      BrowserContextKeyedAPIFactory<GcdPrivateAPI>::Get(GetProfile());
+
+  if (!gcd_api)
+    return false;
+
+  if (!gcd_api->QueryForDevices()) {
+    error_ = "You must first subscribe to onDeviceStateChanged notifications";
+    return false;
+  }
+
+  return true;
+}
+
 GcdPrivateStartSetupFunction::GcdPrivateStartSetupFunction() {
 }