Inject TickTimeInterface into VCM and tests

The purpose of this change is to introduce dependency injection
of the timer into the video coding module.

Review URL: http://webrtc-codereview.appspot.com/332003

git-svn-id: http://webrtc.googlecode.com/svn/trunk@1220 4adac7df-926f-26a2-2b94-8c16560cd09d

src/modules/video_coding/main/test/normal_test.h

@@ -83,7 +83,8 @@ private:
 class NormalTest
 {
 public:
-    NormalTest(webrtc::VideoCodingModule* vcm);
+    NormalTest(webrtc::VideoCodingModule* vcm,
+               webrtc::TickTimeInterface* clock);
     ~NormalTest();
     static int RunTest(CmdArgs& args);
     WebRtc_Word32    Perform(CmdArgs& args);
@@ -105,6 +106,7 @@ protected:
     // calculating pipeline delay, and decoding time
     void            FrameDecoded(WebRtc_UWord32 timeStamp);
 
+    webrtc::TickTimeInterface*       _clock;
     webrtc::VideoCodingModule*       _vcm;
     webrtc::VideoCodec               _sendCodec;
     webrtc::VideoCodec               _receiveCodec;