Add GeolocationManager service

device/geolocation/public/interfaces/geolocation_config.mojom

Index: device/geolocation/public/interfaces/geolocation_config.mojom
diff --git a/device/geolocation/public/interfaces/geolocation_config.mojom b/device/geolocation/public/interfaces/geolocation_config.mojom
new file mode 100644
index 0000000000000000000000000000000000000000..0bf5dd75e2dafbbcbc04a05cbbe016ad5cb2027e
--- /dev/null
+++ b/device/geolocation/public/interfaces/geolocation_config.mojom
@@ -0,0 +1,13 @@
+// Copyright 2017 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.
+
+module device.mojom;
+
+// Provides an interface for browser process to access geolocation capturing
+// config.
+interface GeolocationConfig {
+  // Returns true if the location is being captured and high_accuracy is
+  // enabled.
+  IsHighAccuracyLocationBeingCaptured() => (bool high_accuracy);
+};