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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "content/browser/geolocation/win7_location_provider_win.h" | 5 #include "content/browser/geolocation/win7_location_provider_win.h" |
6 | 6 |
7 #include <algorithm> | 7 #include <algorithm> |
8 #include <cmath> | 8 #include <cmath> |
9 | 9 |
10 #include "base/bind.h" | 10 #include "base/bind.h" |
11 #include "base/compiler_specific.h" | 11 #include "base/compiler_specific.h" |
12 #include "base/logging.h" | 12 #include "base/logging.h" |
13 #include "base/message_loop.h" | 13 #include "base/message_loop/message_loop.h" |
14 | 14 |
15 namespace content { | 15 namespace content { |
16 namespace { | 16 namespace { |
17 | 17 |
18 const int kPollPeriodMovingMillis = 500; | 18 const int kPollPeriodMovingMillis = 500; |
19 // Poll less frequently whilst stationary. | 19 // Poll less frequently whilst stationary. |
20 const int kPollPeriodStationaryMillis = kPollPeriodMovingMillis * 3; | 20 const int kPollPeriodStationaryMillis = kPollPeriodMovingMillis * 3; |
21 // Reading must differ by more than this amount to be considered movement. | 21 // Reading must differ by more than this amount to be considered movement. |
22 const int kMovementThresholdMeters = 20; | 22 const int kMovementThresholdMeters = 20; |
23 | 23 |
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101 } | 101 } |
102 | 102 |
103 LocationProvider* NewSystemLocationProvider() { | 103 LocationProvider* NewSystemLocationProvider() { |
104 Win7LocationApi* api = Win7LocationApi::Create(); | 104 Win7LocationApi* api = Win7LocationApi::Create(); |
105 if (api == NULL) | 105 if (api == NULL) |
106 return NULL; // API not supported on this machine. | 106 return NULL; // API not supported on this machine. |
107 return new Win7LocationProvider(api); | 107 return new Win7LocationProvider(api); |
108 } | 108 } |
109 | 109 |
110 } // namespace content | 110 } // namespace content |
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