Bug 1366706 - accepts video frames with negative timestamp but non-zero size. r=jya

MozReview-Commit-ID: 5QqzOesIynN

--HG--
extra : rebase_source : 7bcebe28e90189a79f554e8fc27d77d7db52d924

dom/media/platforms/android/RemoteDataDecoder.cpp

@@ -112,6 +112,9 @@ public:
       int32_t offset;
       ok &= NS_SUCCEEDED(info->Offset(&offset));
 
+      int32_t size;
+      ok &= NS_SUCCEEDED(info->Size(&size));
+
       int64_t presentationTimeUs;
       ok &= NS_SUCCEEDED(info->PresentationTimeUs(&presentationTimeUs));
 
@@ -130,7 +133,7 @@ public:
         return;
       }
 
-      if (ok && presentationTimeUs >= 0) {
+      if (ok && (size > 0 || presentationTimeUs >= 0)) {
         RefPtr<layers::Image> img = new SurfaceTextureImage(
           mDecoder->mSurfaceHandle, inputInfo.mImageSize, false /* NOT continuous */,
           gl::OriginPos::BottomLeft);