Gets rid of the LocationArbitrator interface, in preference for LocationProvider.

device/geolocation/mock_location_arbitrator.cc

Index: device/geolocation/mock_location_arbitrator.cc
diff --git a/device/geolocation/mock_location_arbitrator.cc b/device/geolocation/mock_location_arbitrator.cc
index 0ad98c1122337ec4659e583035e047ce0821580a..cf951d3de3e7360763067791b1d5b5c6783bdd9a 100644
--- a/device/geolocation/mock_location_arbitrator.cc
+++ b/device/geolocation/mock_location_arbitrator.cc
@@ -12,11 +12,15 @@ namespace device {
 MockLocationArbitrator::MockLocationArbitrator()
     : permission_granted_(false), providers_started_(false) {}
 
-void MockLocationArbitrator::StartProviders(bool enable_high_accuracy) {
+void MockLocationArbitrator::SetUpdateCallback(
+    const LocationProviderUpdateCallback& callback) {}
+
+bool MockLocationArbitrator::StartProvider(bool enable_high_accuracy) {
   providers_started_ = true;
+  return providers_started_;
 }
 
-void MockLocationArbitrator::StopProviders() {
+void MockLocationArbitrator::StopProvider() {
   providers_started_ = false;
 }
 
@@ -24,6 +28,10 @@ void MockLocationArbitrator::OnPermissionGranted() {
   permission_granted_ = true;
 }
 
+void MockLocationArbitrator::RequestRefresh() {}
+
+void MockLocationArbitrator::GetPosition(Geoposition* position) {}
+
 bool MockLocationArbitrator::HasPermissionBeenGranted() const {
   return permission_granted_;
 }