Delete unused code in webrtc_libyuv.cc.

webrtc/modules/video_coding/codecs/vp8/test/vp8_impl_unittest.cc

 /*
  *  Copyright (c) 2012 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 114 matching lines @@
     ASSERT_TRUE(source_file_ != NULL);
     // Set input frame.
     ASSERT_EQ(
         fread(source_buffer_.get(), 1, length_source_frame_, source_file_),
         length_source_frame_);
     codec_inst_.width = kWidth;
     codec_inst_.height = kHeight;
     const int kFramerate = 30;
     codec_inst_.maxFramerate = kFramerate;
     // Setting aligned stride values.
-    int stride_uv = 0;
-    int stride_y = 0;
-    Calc16ByteAlignedStride(codec_inst_.width, &stride_y, &stride_uv);
+    int stride_y = 16 * ((codec_inst_.width + 15) / 16);

[pbos-webrtc, 2016/05/31 10:48:45]

Pref copying the method here as well, this reads worse.

[nisse-webrtc, 2016/05/31 12:55:22]

Done.

+    int stride_uv = 16 * ((codec_inst_.width + 31) / 32);
     EXPECT_EQ(stride_y, 176);
     EXPECT_EQ(stride_uv, 96);
 
     input_frame_.CreateEmptyFrame(codec_inst_.width, codec_inst_.height,
                                   stride_y, stride_uv, stride_uv);
     input_frame_.set_timestamp(kTestTimestamp);
     // Using ConvertToI420 to add stride to the image.
     EXPECT_EQ(0, ConvertToI420(kI420, source_buffer_.get(), 0, 0,
                                codec_inst_.width, codec_inst_.height, 0,
                                kVideoRotation_0, &input_frame_));
@@ skipping 113 matching lines @@
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_ERROR,
             decoder_->Decode(encoded_frame_, false, NULL));
   // Now setting a key frame.
   encoded_frame_._frameType = kVideoFrameKey;
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
             decoder_->Decode(encoded_frame_, false, NULL));
   EXPECT_GT(I420PSNR(&input_frame_, &decoded_frame_), 36);
 }
 
 }  // namespace webrtc