Revert 76228 - Move core pieces of geolocation from chrome to content.This is...

content/browser/geolocation/mock_location_provider.cc

-// Copyright (c) 2010 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/compiler_specific.h"
-#include "base/logging.h"
-#include "base/message_loop.h"
-#include "base/message_loop_proxy.h"
-#include "base/task.h"
-
-// The provider will always be destroyed before the thread it runs on, so ref
-// counting is not required.
-DISABLE_RUNNABLE_METHOD_REFCOUNT(MockLocationProvider);
-
-MockLocationProvider* MockLocationProvider::instance_ = NULL;
-
-MockLocationProvider::MockLocationProvider(MockLocationProvider** self_ref)
-    : state_(STOPPED),
-      self_ref_(self_ref),
-      provider_loop_(base::MessageLoopProxy::CreateForCurrentThread()) {
-  CHECK(self_ref_);
-  CHECK(*self_ref_ == NULL);
-  *self_ref_ = this;
-}
-
-MockLocationProvider::~MockLocationProvider() {
-  CHECK(*self_ref_ == this);
-  *self_ref_ = NULL;
-}
-
-void MockLocationProvider::HandlePositionChanged(const Geoposition& position) {
-  if (provider_loop_->BelongsToCurrentThread()) {
-    // The location arbitrator unit tests rely on this method running
-    // synchronously.
-    position_ = position;
-    UpdateListeners();
-  } else {
-    Task* task = NewRunnableMethod(
-        this, &MockLocationProvider::HandlePositionChanged, position);
-    provider_loop_->PostTask(FROM_HERE, task);
-  }
-}
-
-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(const GURL& requesting_frame) {
-  permission_granted_url_ = requesting_frame;
-}
-
-// Mock location provider that automatically calls back it's 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)
-      : MockLocationProvider(&instance_),
-        ALLOW_THIS_IN_INITIALIZER_LIST(task_factory_(this)),
-        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;
-    }
-  }
-  virtual bool StartProvider(bool high_accuracy) {
-    MockLocationProvider::StartProvider(high_accuracy);
-    if (!requires_permission_to_start_) {
-      UpdateListenersIfNeeded();
-    }
-    return true;
-  }
-
-  void OnPermissionGranted(const GURL& requesting_frame) {
-    MockLocationProvider::OnPermissionGranted(requesting_frame);
-    if (requires_permission_to_start_) {
-      UpdateListenersIfNeeded();
-    }
-  }
-
-  void UpdateListenersIfNeeded() {
-    if (!listeners_updated_) {
-      listeners_updated_ = true;
-      MessageLoop::current()->PostTask(
-          FROM_HERE, task_factory_.NewRunnableMethod(
-          &MockLocationProvider::HandlePositionChanged, position_));
-    }
-  }
-
-  ScopedRunnableMethodFactory<MockLocationProvider> task_factory_;
-  const bool requires_permission_to_start_;
-  bool listeners_updated_;
-};
-
-LocationProviderBase* NewMockLocationProvider() {
-  return new MockLocationProvider(&MockLocationProvider::instance_);
-}
-
-LocationProviderBase* NewAutoSuccessMockLocationProvider() {
-  return new AutoMockLocationProvider(true, false);
-}
-
-LocationProviderBase* NewAutoFailMockLocationProvider() {
-  return new AutoMockLocationProvider(false, false);
-}
-
-LocationProviderBase* NewAutoSuccessMockNetworkLocationProvider() {
-  return new AutoMockLocationProvider(true, true);
-}