Added EncodedImage::GetBufferPaddingBytes.

webrtc/common_video/video_frame.cc

Index: webrtc/common_video/video_frame.cc
diff --git a/webrtc/common_video/video_frame.cc b/webrtc/common_video/video_frame.cc
index 8ccd821d090be4423917885a53ff9b715d4dfa27..a6c1606fe48e17618ac8b804cd03fffcdfdb7117 100644
--- a/webrtc/common_video/video_frame.cc
+++ b/webrtc/common_video/video_frame.cc
@@ -16,6 +16,7 @@
 
 #include "webrtc/base/bind.h"
 #include "webrtc/base/checks.h"
+#include "webrtc/modules/video_coding/codecs/h264/include/h264.h"
 
 namespace webrtc {
 
@@ -242,4 +243,22 @@ bool VideoFrame::EqualsFrame(const VideoFrame& frame) const {
                     stride(kVPlane), half_width, half_height);
 }
 
+size_t EncodedImage::GetBufferPadding(VideoCodecType codec_type) {
+  switch (codec_type) {
+    case kVideoCodecVP8:
+    case kVideoCodecVP9:
+      return 0;
+    case kVideoCodecH264:
+      return kEncodedImagePaddingH264;
+    case kVideoCodecI420:
+    case kVideoCodecRED:
+    case kVideoCodecULPFEC:
+    case kVideoCodecGeneric:
+    case kVideoCodecUnknown:
+      return 0;
+  }
+  RTC_NOTREACHED();
+  return 0;
+}
+
 }  // namespace webrtc