Revert of Delete unused and almost unused frame-related methods.

webrtc/common_video/video_frame_buffer.cc

Index: webrtc/common_video/video_frame_buffer.cc
diff --git a/webrtc/common_video/video_frame_buffer.cc b/webrtc/common_video/video_frame_buffer.cc
index 60ecae381c160b82f9dbb5af72d9140c714ad73f..14e19dc0e33f4bd90b07345ec387dd9b29495f40 100644
--- a/webrtc/common_video/video_frame_buffer.cc
+++ b/webrtc/common_video/video_frame_buffer.cc
@@ -30,6 +30,54 @@
 
 }  // namespace
 
+const uint8_t* VideoFrameBuffer::data(PlaneType type) const {
+  switch (type) {
+    case kYPlane:
+      return DataY();
+    case kUPlane:
+      return DataU();
+    case kVPlane:
+      return DataV();
+    default:
+      RTC_NOTREACHED();
+      return nullptr;
+  }
+}
+
+const uint8_t* VideoFrameBuffer::DataY() const {
+  return data(kYPlane);
+}
+const uint8_t* VideoFrameBuffer::DataU() const {
+  return data(kUPlane);
+}
+const uint8_t* VideoFrameBuffer::DataV() const {
+  return data(kVPlane);
+}
+
+int VideoFrameBuffer::stride(PlaneType type) const {
+  switch (type) {
+    case kYPlane:
+      return StrideY();
+    case kUPlane:
+      return StrideU();
+    case kVPlane:
+      return StrideV();
+    default:
+      RTC_NOTREACHED();
+      return 0;
+  }
+}
+
+int VideoFrameBuffer::StrideY() const {
+  return stride(kYPlane);
+}
+int VideoFrameBuffer::StrideU() const {
+  return stride(kUPlane);
+}
+int VideoFrameBuffer::StrideV() const {
+  return stride(kVPlane);
+}
+
 uint8_t* VideoFrameBuffer::MutableDataY() {
   RTC_NOTREACHED();
   return nullptr;
@@ -41,6 +89,20 @@
 uint8_t* VideoFrameBuffer::MutableDataV() {
   RTC_NOTREACHED();
   return nullptr;
+}
+
+uint8_t* VideoFrameBuffer::MutableData(PlaneType type) {
+  switch (type) {
+    case kYPlane:
+      return MutableDataY();
+    case kUPlane:
+      return MutableDataU();
+    case kVPlane:
+      return MutableDataV();
+    default:
+      RTC_NOTREACHED();
+      return nullptr;
+  }
 }
 
 VideoFrameBuffer::~VideoFrameBuffer() {}