Don't require VDAs to return all PictureBuffers at once.

media/video/video_decode_accelerator.h

Index: media/video/video_decode_accelerator.h
diff --git a/media/video/video_decode_accelerator.h b/media/video/video_decode_accelerator.h
index e2bcdf64855fdf3455fc0a3b73ae2b59c2e928e6..2c2a6a9f2d455e8d94ff55712ab5fd5800f1916e 100644
--- a/media/video/video_decode_accelerator.h
+++ b/media/video/video_decode_accelerator.h
@@ -31,6 +31,17 @@ class MEDIA_EXPORT VideoDecodeAccelerator {
     VideoCodecProfile profile;
     gfx::Size max_resolution;
     gfx::Size min_resolution;
+
+    // Flags that can be passed when providing picture buffers.

[Pawel Osciak, 2015/12/04 11:09:45]

Should this be changed?

[liberato (no reviews please), 2015/12/04 18:28:58]

Done.

+    enum ProfileFlags {
+      kNoFlags = 0,
+
+      // If set, then the VDA makes no guarantees that it won't stall before
+      // sending all the picture buffers to the client via PictureReady.
+      kCanStallAnytime = 1 << 0,
+    };
+
+    ProfileFlags flags;
   };
   using SupportedProfiles = std::vector<SupportedProfile>;