Revert of Move MutableDataY{,U,V} methods to I420Buffer only.

webrtc/video/video_encoder_unittest.cc

Index: webrtc/video/video_encoder_unittest.cc
diff --git a/webrtc/video/video_encoder_unittest.cc b/webrtc/video/video_encoder_unittest.cc
index eb2b45026bdcc3242caebb8c859b7abd9a559a93..84ac4fd46699366eaa01ca03825efb5efd29c6a5 100644
--- a/webrtc/video/video_encoder_unittest.cc
+++ b/webrtc/video/video_encoder_unittest.cc
@@ -116,18 +116,22 @@
   CountingFakeEncoder fake_encoder_;
   VideoEncoderSoftwareFallbackWrapper fallback_wrapper_;
   VideoCodec codec_ = {};
-  std::unique_ptr<VideoFrame> frame_;
+  VideoFrame frame_;
 };
 
 void VideoEncoderSoftwareFallbackWrapperTest::EncodeFrame() {
-  rtc::scoped_refptr<I420Buffer> buffer = I420Buffer::Create(
-      kWidth, kHeight, kWidth, (kWidth + 1) / 2, (kWidth + 1) / 2);
-  buffer->SetToBlack();
+  frame_.CreateEmptyFrame(kWidth, kHeight, kWidth, (kWidth + 1) / 2,
+                          (kWidth + 1) / 2);
+  memset(frame_.video_frame_buffer()->MutableDataY(), 16,
+         frame_.allocated_size(webrtc::kYPlane));
+  memset(frame_.video_frame_buffer()->MutableDataU(), 128,
+         frame_.allocated_size(webrtc::kUPlane));
+  memset(frame_.video_frame_buffer()->MutableDataV(), 128,
+         frame_.allocated_size(webrtc::kVPlane));
+
   std::vector<FrameType> types(1, kVideoFrameKey);
-
-  frame_.reset(new VideoFrame(buffer, 0, 0, webrtc::kVideoRotation_0));
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            fallback_wrapper_.Encode(*frame_, nullptr, &types));
+            fallback_wrapper_.Encode(frame_, nullptr, &types));
 }
 
 void VideoEncoderSoftwareFallbackWrapperTest::UtilizeFallbackEncoder() {
@@ -221,9 +225,9 @@
 
   // Encoding a frame using the fallback should arrive at the new callback.
   std::vector<FrameType> types(1, kVideoFrameKey);
-  frame_->set_timestamp(frame_->timestamp() + 1000);
+  frame_.set_timestamp(frame_.timestamp() + 1000);
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            fallback_wrapper_.Encode(*frame_, nullptr, &types));
+            fallback_wrapper_.Encode(frame_, nullptr, &types));
 
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, fallback_wrapper_.Release());
 }