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

content/common/gpu/media/android_copying_backing_strategy.h

Index: content/common/gpu/media/android_copying_backing_strategy.h
diff --git a/content/common/gpu/media/android_copying_backing_strategy.h b/content/common/gpu/media/android_copying_backing_strategy.h
index 4cb1f622a5a30f1f2c46eddd1e17f6a8a4de9a75..92e71e0195c8281caeea46ac5f34a6fa780152ce 100644
--- a/content/common/gpu/media/android_copying_backing_strategy.h
+++ b/content/common/gpu/media/android_copying_backing_strategy.h
@@ -41,6 +41,11 @@ class CONTENT_EXPORT AndroidCopyingBackingStrategy
       media::VideoCodecBridge*,
       const AndroidVideoDecodeAccelerator::OutputBufferMap&) override;
 
+  static media::VideoDecodeAccelerator::SupportedProfile::ProfileFlags
+  GetProfileFlags() {
+    return media::VideoDecodeAccelerator::SupportedProfile::kNoFlags;
+  }
+
  private:
   // Used for copy the texture from surface texture to picture buffers.
   scoped_ptr<gpu::CopyTextureCHROMIUMResourceManager> copier_;