Bug 1127203 - Use the tolerance value in TrackBuffersContainTime so that seeking operates with tolerance too. r=mattwoodrow

dom/media/mediasource/MediaSourceReader.cpp

@@ -642,10 +642,10 @@ bool
 MediaSourceReader::TrackBuffersContainTime(int64_t aTime)
 {
   ReentrantMonitorAutoEnter mon(mDecoder->GetReentrantMonitor());
-  if (mAudioTrack && !mAudioTrack->ContainsTime(aTime)) {
+  if (mAudioTrack && !mAudioTrack->ContainsTime(aTime, EOS_FUZZ_US)) {
     return false;
   }
-  if (mVideoTrack && !mVideoTrack->ContainsTime(aTime)) {
+  if (mVideoTrack && !mVideoTrack->ContainsTime(aTime, EOS_FUZZ_US)) {
     return false;
   }
   return true;

dom/media/mediasource/TrackBuffer.cpp

@@ -584,13 +584,14 @@ TrackBuffer::IsReady()
 }
 
 bool
-TrackBuffer::ContainsTime(int64_t aTime)
+TrackBuffer::ContainsTime(int64_t aTime, int64_t aTolerance)
 {
   ReentrantMonitorAutoEnter mon(mParentDecoder->GetReentrantMonitor());
   for (uint32_t i = 0; i < mInitializedDecoders.Length(); ++i) {
     nsRefPtr<dom::TimeRanges> r = new dom::TimeRanges();
     mInitializedDecoders[i]->GetBuffered(r);
-    if (r->Find(double(aTime) / USECS_PER_S) != dom::TimeRanges::NoIndex) {
+    if (r->Find(double(aTime) / USECS_PER_S,
+                double(aTolerance) / USECS_PER_S) != dom::TimeRanges::NoIndex) {
       return true;
     }
   }

dom/media/mediasource/TrackBuffer.h

@@ -76,7 +76,7 @@ public:
 
   // Returns true if any of the decoders managed by this track buffer
   // contain aTime in their buffered ranges.
-  bool ContainsTime(int64_t aTime);
+  bool ContainsTime(int64_t aTime, int64_t aTolerance);
 
   void BreakCycles();