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

webrtc/common_video/include/video_frame_buffer.h

 /*
  *  Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 30 matching lines @@
   // TODO(nisse): For the transition, we use default implementations
   // of the stride and data methods where the new methods calls the
   // old method, and the old method calls the new methods. Subclasses
   // must override either the new methods or the old method, to break
   // infinite recursion. And similarly for the strides. When
   // applications, in particular Chrome, are updated, delete the old
   // method and delete the default implementation of the new methods.
 
   // Returns pointer to the pixel data for a given plane. The memory is owned by
   // the VideoFrameBuffer object and must not be freed by the caller.
-  virtual const uint8_t* DataY() const = 0;
-  virtual const uint8_t* DataU() const = 0;
-  virtual const uint8_t* DataV() const = 0;
+  virtual const uint8_t* DataY() const;
+  virtual const uint8_t* DataU() const;
+  virtual const uint8_t* DataV() const;
+  // Deprecated method.
+  // TODO(nisse): Delete after all users are updated.
+  virtual const uint8_t* data(PlaneType type) const;
 
   // TODO(nisse): Move MutableData methods to the I420Buffer subclass.
   // Non-const data access.
   virtual uint8_t* MutableDataY();
   virtual uint8_t* MutableDataU();
   virtual uint8_t* MutableDataV();
+  // Deprecated method. TODO(nisse): Delete after all users are updated.
+  virtual uint8_t* MutableData(PlaneType type);
 
   // Returns the number of bytes between successive rows for a given plane.
-  virtual int StrideY() const = 0;
-  virtual int StrideU() const = 0;
-  virtual int StrideV() const = 0;
+  virtual int StrideY() const;
+  virtual int StrideU() const;
+  virtual int StrideV() const;
+  // Deprecated method. TODO(nisse): Delete after all users are updated.
+  virtual int stride(PlaneType type) const;
 
   // Return the handle of the underlying video frame. This is used when the
   // frame is backed by a texture.
   virtual void* native_handle() const = 0;
 
   // Returns a new memory-backed frame buffer converted from this buffer's
   // native handle.
   virtual rtc::scoped_refptr<VideoFrameBuffer> NativeToI420Buffer() = 0;
 
  protected:
@@ skipping 129 matching lines @@
   const uint8_t* const v_plane_;
   const int y_stride_;
   const int u_stride_;
   const int v_stride_;
   rtc::Callback0<void> no_longer_used_cb_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_COMMON_VIDEO_INCLUDE_VIDEO_FRAME_BUFFER_H_