Reland 2:Geolocation: move from content/browser to device/

content/browser/geolocation/mock_location_provider.cc

-// 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.
-
-// This file implements a mock location provider and the factory functions for
-// various ways of creating it.
-
-#include "content/browser/geolocation/mock_location_provider.h"
-
-#include "base/bind.h"
-#include "base/bind_helpers.h"
-#include "base/compiler_specific.h"
-#include "base/location.h"
-#include "base/logging.h"
-#include "base/memory/weak_ptr.h"
-#include "base/threading/thread_task_runner_handle.h"
-
-namespace content {
-
-MockLocationProvider::MockLocationProvider()
-    : state_(STOPPED),
-      is_permission_granted_(false),
-      provider_task_runner_(base::ThreadTaskRunnerHandle::Get()) {}
-
-MockLocationProvider::~MockLocationProvider() {}
-
-void MockLocationProvider::HandlePositionChanged(const Geoposition& position) {
-  if (provider_task_runner_->BelongsToCurrentThread()) {
-    // The location arbitrator unit tests rely on this method running
-    // synchronously.
-    position_ = position;
-    NotifyCallback(position_);
-  } else {
-    provider_task_runner_->PostTask(
-        FROM_HERE, base::Bind(&MockLocationProvider::HandlePositionChanged,
-                              base::Unretained(this), position));
-  }
-}
-
-bool MockLocationProvider::StartProvider(bool high_accuracy) {
-  state_ = high_accuracy ? HIGH_ACCURACY : LOW_ACCURACY;
-  return true;
-}
-
-void MockLocationProvider::StopProvider() {
-  state_ = STOPPED;
-}
-
-void MockLocationProvider::GetPosition(Geoposition* position) {
-  *position = position_;
-}
-
-void MockLocationProvider::OnPermissionGranted() {
-  is_permission_granted_ = true;
-}
-
-// Mock location provider that automatically calls back its client at most
-// once, when StartProvider or OnPermissionGranted is called. Use
-// |requires_permission_to_start| to select which event triggers the callback.
-class AutoMockLocationProvider : public MockLocationProvider {
- public:
-  AutoMockLocationProvider(bool has_valid_location,
-                           bool requires_permission_to_start)
-      : requires_permission_to_start_(requires_permission_to_start),
-        listeners_updated_(false) {
-    if (has_valid_location) {
-      position_.accuracy = 3;
-      position_.latitude = 4.3;
-      position_.longitude = -7.8;
-      // Webkit compares the timestamp to wall clock time, so we need it to be
-      // contemporary.
-      position_.timestamp = base::Time::Now();
-    } else {
-      position_.error_code = Geoposition::ERROR_CODE_POSITION_UNAVAILABLE;
-    }
-  }
-  bool StartProvider(bool high_accuracy) override {
-    MockLocationProvider::StartProvider(high_accuracy);
-    if (!requires_permission_to_start_) {
-      UpdateListenersIfNeeded();
-    }
-    return true;
-  }
-
-  void OnPermissionGranted() override {
-    MockLocationProvider::OnPermissionGranted();
-    if (requires_permission_to_start_) {
-      UpdateListenersIfNeeded();
-    }
-  }
-
-  void UpdateListenersIfNeeded() {
-    if (!listeners_updated_) {
-      listeners_updated_ = true;
-      base::ThreadTaskRunnerHandle::Get()->PostTask(
-          FROM_HERE, base::Bind(&MockLocationProvider::HandlePositionChanged,
-                                base::Unretained(this), position_));
-    }
-  }
-
- private:
-  const bool requires_permission_to_start_;
-  bool listeners_updated_;
-
-  DISALLOW_COPY_AND_ASSIGN(AutoMockLocationProvider);
-};
-
-LocationProvider* NewMockLocationProvider() {
-  return new MockLocationProvider;
-}
-
-LocationProvider* NewAutoSuccessMockLocationProvider() {
-  return new AutoMockLocationProvider(true, false);
-}
-
-LocationProvider* NewAutoFailMockLocationProvider() {
-  return new AutoMockLocationProvider(false, false);
-}
-
-LocationProvider* NewAutoSuccessMockNetworkLocationProvider() {
-  return new AutoMockLocationProvider(true, true);
-}
-
-}  // namespace content