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| 1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2006-2008 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 "build/build_config.h" | 5 #include "build/build_config.h" |
| 6 | 6 |
| 7 #include <windows.h> | 7 #include <windows.h> |
| 8 #include <mmsystem.h> | 8 #include <mmsystem.h> |
| 9 | 9 |
| 10 #include "base/event_recorder.h" | 10 #include "base/event_recorder.h" |
| 11 #include "base/file_util.h" | 11 #include "base/file_util.h" |
| 12 #include "base/logging.h" | 12 #include "base/logging.h" |
| 13 #include "base/time.h" | |
| 14 | 13 |
| 15 // A note about time. | 14 // A note about time. |
| 16 // For perfect playback of events, you'd like a very accurate timer | 15 // For perfect playback of events, you'd like a very accurate timer |
| 17 // so that events are played back at exactly the same time that | 16 // so that events are played back at exactly the same time that |
| 18 // they were recorded. However, windows has a clock which is only | 17 // they were recorded. However, windows has a clock which is only |
| 19 // granular to ~15ms. We see more consistent event playback when | 18 // granular to ~15ms. We see more consistent event playback when |
| 20 // using a higher resolution timer. To do this, we use the | 19 // using a higher resolution timer. To do this, we use the |
| 21 // timeGetTime API instead of the default GetTickCount() API. | 20 // timeGetTime API instead of the default GetTickCount() API. |
| 22 | 21 |
| 23 namespace base { | 22 namespace base { |
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| 251 // indicating that the message is not removed from the message queue after | 250 // indicating that the message is not removed from the message queue after |
| 252 // PeekMessage processing. | 251 // PeekMessage processing. |
| 253 case HC_NOREMOVE: | 252 case HC_NOREMOVE: |
| 254 break; | 253 break; |
| 255 } | 254 } |
| 256 | 255 |
| 257 return CallNextHookEx(journal_hook_, nCode, wParam, lParam); | 256 return CallNextHookEx(journal_hook_, nCode, wParam, lParam); |
| 258 } | 257 } |
| 259 | 258 |
| 260 } // namespace base | 259 } // namespace base |
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