Move video_coding to new Clock interface and remove fake clock implementations from RTP module tests.

TEST=video_coding_unittests, video_coding_integrationtests, rtp_rtcp_unittests, trybots

Review URL: https://webrtc-codereview.appspot.com/1044004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@3393 4adac7df-926f-26a2-2b94-8c16560cd09d

webrtc/modules/video_coding/main/source/generic_decoder.cc

@@ -12,12 +12,12 @@
 #include "trace.h"
 #include "generic_decoder.h"
 #include "internal_defines.h"
-#include "tick_time_base.h"
+#include "webrtc/system_wrappers/interface/clock.h"
 
 namespace webrtc {
 
 VCMDecodedFrameCallback::VCMDecodedFrameCallback(VCMTiming& timing,
-                                                 TickTimeBase* clock)
+                                                 Clock* clock)
 :
 _critSect(CriticalSectionWrapper::CreateCriticalSection()),
 _clock(clock),
@@ -56,7 +56,7 @@ WebRtc_Word32 VCMDecodedFrameCallback::Decoded(I420VideoFrame& decodedImage)
     _timing.StopDecodeTimer(
         decodedImage.timestamp(),
         frameInfo->decodeStartTimeMs,
-        _clock->MillisecondTimestamp());
+        _clock->TimeInMilliseconds());
 
     if (_receiveCallback != NULL)
     {