Convert video capture pipline to base::TimeTicks

media/video/capture/video_capture_device.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.
 //
 // VideoCaptureDevice is the abstract base class for realizing video capture
 // device support in Chromium. It provides the interface for OS dependent
 // implementations.
 // The class is created and functions are invoked on a thread owned by
 // VideoCaptureManager. Capturing is done on other threads, depending on the OS
 // specific implementation.
@@ skipping 144 matching lines @@
     // layout are taken from the parameters specified by an earlier call to
     // OnFrameInfo(). |data| must be packed, with no padding between rows and/or
     // color planes.
     //
     // This method will try to reserve an output buffer and copy from |data|
     // into the output buffer. If no output buffer is available, the frame will
     // be silently dropped.
     virtual void OnIncomingCapturedFrame(
         const uint8* data,
         int length,
-        base::Time timestamp,
+        base::TimeTicks timestamp,
         int rotation,  // Clockwise.
         const VideoCaptureFormat& frame_format) = 0;
 
     // Captured a new video frame, held in |buffer|.
     //
     // As the frame is backed by a reservation returned by
     // ReserveOutputBuffer(), delivery is guaranteed and will require no
     // additional copies in the browser process. |dimensions| indicates the
     // frame width and height of the buffer contents; this is assumed to be of
     // |format| format and tightly packed.
     virtual void OnIncomingCapturedBuffer(const scoped_refptr<Buffer>& buffer,
                                           media::VideoFrame::Format format,
                                           const gfx::Size& dimensions,
-                                          base::Time timestamp,
+                                          base::TimeTicks timestamp,
                                           int frame_rate) = 0;
 
     // An error has occurred that cannot be handled and VideoCaptureDevice must
     // be StopAndDeAllocate()-ed.
     virtual void OnError() = 0;
   };
 
   // Creates a VideoCaptureDevice object.
   // Return NULL if the hardware is not available.
   static VideoCaptureDevice* Create(const Name& device_name);
@@ skipping 25 matching lines @@
   // If deallocation is done asynchronously, then the device implementation must
   // ensure that a subsequent AllocateAndStart() operation targeting the same ID
   // would be sequenced through the same task runner, so that deallocation
   // happens first.
   virtual void StopAndDeAllocate() = 0;
 };
 
 }  // namespace media
 
 #endif  // MEDIA_VIDEO_CAPTURE_VIDEO_CAPTURE_DEVICE_H_