Change default timestamp to 64 bits in all webrtc directories.

webrtc/base/messagequeue.cc

Index: webrtc/base/messagequeue.cc
diff --git a/webrtc/base/messagequeue.cc b/webrtc/base/messagequeue.cc
index 61aa61192bbad69d87ddf5e79aab3a5af3ce290f..61c36e2ca045eaff3324318b0e76418edee77ba8 100644
--- a/webrtc/base/messagequeue.cc
+++ b/webrtc/base/messagequeue.cc
@@ -27,7 +27,7 @@ typedef rtc::PhysicalSocketServer DefaultSocketServer;
 
 namespace rtc {
 
-const uint32_t kMaxMsgLatency = 150;  // 150 ms
+const int kMaxMsgLatency = 150;  // 150 ms

[pthatcher1, 2016/04/11 20:56:59]

Why not uint64_t?

[honghaiz3, 2016/04/18 23:39:03]

According to style guide, we should not use uintXX only because the value does
not take negative values. 
Using uint here will require unnecessary type conversion later. 
For example if using uint64_t here, then kMaxMsgLatency + timestamp will become
uint64_t type, which cannot be directly assigned to another timestamp variable
without a type conversion.  

Using int64_t here is not necessary because the latency value does not need 64
bits. 
Basically for all delta-time, I am using int type except in a few locations
where uint32 is more appropriate for other reasons. 

 
 //------------------------------------------------------------------
 // MessageQueueManager
@@ -226,8 +226,8 @@ bool MessageQueue::Get(Message *pmsg, int cmsWait, bool process_io) {
 
   int cmsTotal = cmsWait;
   int cmsElapsed = 0;
-  uint32_t msStart = Time();
-  uint32_t msCurrent = msStart;
+  int64_t msStart = Time();
+  int64_t msCurrent = msStart;
   while (true) {
     // Check for sent messages
     ReceiveSends();
@@ -246,7 +246,7 @@ bool MessageQueue::Get(Message *pmsg, int cmsWait, bool process_io) {
         if (first_pass) {
           first_pass = false;
           while (!dmsgq_.empty()) {
-            if (TimeIsLater(msCurrent, dmsgq_.top().msTrigger_)) {
+            if (msCurrent < dmsgq_.top().msTrigger_) {
               cmsDelayNext = TimeDiff(dmsgq_.top().msTrigger_, msCurrent);
               break;
             }
@@ -349,7 +349,7 @@ void MessageQueue::PostDelayed(int cmsDelay,
   return DoDelayPost(cmsDelay, TimeAfter(cmsDelay), phandler, id, pdata);
 }
 
-void MessageQueue::PostAt(uint32_t tstamp,
+void MessageQueue::PostAt(int64_t tstamp,
                           MessageHandler* phandler,
                           uint32_t id,
                           MessageData* pdata) {
@@ -357,7 +357,7 @@ void MessageQueue::PostAt(uint32_t tstamp,
 }
 
 void MessageQueue::DoDelayPost(int cmsDelay,
-                               uint32_t tstamp,
+                               int64_t tstamp,
                                MessageHandler* phandler,
                                uint32_t id,
                                MessageData* pdata) {