Make DefaultDeleter for Video{De|En}codeAccelerator

media/video/video_decode_accelerator.cc

Index: media/video/video_decode_accelerator.cc
diff --git a/media/video/video_decode_accelerator.cc b/media/video/video_decode_accelerator.cc
index 9063d68bdfe0b2dc87f4d6fb451c3ea400c46048..142dab366c344f3174896340157e6a09d58134cd 100644
--- a/media/video/video_decode_accelerator.cc
+++ b/media/video/video_decode_accelerator.cc
@@ -9,3 +9,15 @@ namespace media {
 VideoDecodeAccelerator::~VideoDecodeAccelerator() {}
 
 }
+
+namespace base {
+
+void DefaultDeleter<media::VideoDecodeAccelerator>::operator()(
+    void* video_decode_accelerator) const {
+  static_cast<media::VideoDecodeAccelerator*>(video_decode_accelerator)->
+      Destroy();
+}
+
+}  // namespace base
+
+