Adds GeolocationFeature for Blimp Geolocation project.

device/geolocation/fake_location_provider.h

+// Copyright (c) 2012 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.
+
+#ifndef DEVICE_GEOLOCATION_FAKE_LOCATION_PROVIDER_H_
+#define DEVICE_GEOLOCATION_FAKE_LOCATION_PROVIDER_H_
+
+#include "base/compiler_specific.h"
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "base/single_thread_task_runner.h"
+#include "base/threading/thread.h"
+#include "device/geolocation/geoposition.h"
+#include "device/geolocation/location_provider_base.h"
+
+namespace device {
+
+// Fake implementation of a location provider for testing.
+class FakeLocationProvider : public LocationProviderBase {
+ public:
+  enum State { STOPPED, LOW_ACCURACY, HIGH_ACCURACY } state_ = STOPPED;
+
+  FakeLocationProvider();
+  ~FakeLocationProvider() override;
+
+  // Updates listeners with the new position.
+  void HandlePositionChanged(const Geoposition& position);
+
+  bool get_state() const { return state_; }

[Wez, 2016/08/20 01:42:11]

|state_| isn't a bool; do you mean:

State get_state() const

or

bool is_started() const

?

[CJ, 2016/08/22 17:56:39]

State state(). Done.

+  bool get_is_permission_granted() const { return is_permission_granted_; }

[Wez, 2016/08/20 01:42:11]

Simple getters and setters are named along the lines of:

Foo foo() const
void set_foo(Foo)

i.e. no get_ on the getter

[CJ, 2016/08/22 17:56:39]

Done.

+  const Geoposition& get_position() const { return position_; }

[Wez, 2016/08/20 01:42:11]

Isn't this exactly what GetPosition does?

[CJ, 2016/08/22 17:56:39]

Good point.

+
+  // LocationProvider implementation.
+  bool StartProvider(bool high_accuracy) override;
+  void StopProvider() override;
+  const Geoposition& GetPosition() override;
+  void OnPermissionGranted() override;
+
+  scoped_refptr<base::SingleThreadTaskRunner> provider_task_runner_;
+
+ private:
+  bool is_permission_granted_ = false;
+  Geoposition position_;
+
+  DISALLOW_COPY_AND_ASSIGN(FakeLocationProvider);
+};
+
+}  // namespace device
+
+#endif  // DEVICE_GEOLOCATION_FAKE_LOCATION_PROVIDER_H_