RTC_[D]CHECK_op: Remove superfluous casts

webrtc/modules/video_coding/codecs/vp8/vp8_impl.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 679 matching lines @@
           UpdateCodecFrameSize(input_image->width(), input_image->height());
       if (ret < 0)
         return ret;
     }
   }
 
   // Since we are extracting raw pointers from |input_image| to
   // |raw_images_[0]|, the resolution of these frames must match. Note that
   // |input_image| might be scaled from |frame|. In that case, the resolution of
   // |raw_images_[0]| should have been updated in UpdateCodecFrameSize.
-  RTC_DCHECK_EQ(input_image->width(), static_cast<int>(raw_images_[0].d_w));
-  RTC_DCHECK_EQ(input_image->height(), static_cast<int>(raw_images_[0].d_h));
+  RTC_DCHECK_EQ(input_image->width(), raw_images_[0].d_w);
+  RTC_DCHECK_EQ(input_image->height(), raw_images_[0].d_h);
 
   // Image in vpx_image_t format.
   // Input image is const. VP8's raw image is not defined as const.
   raw_images_[0].planes[VPX_PLANE_Y] =
       const_cast<uint8_t*>(input_image->DataY());
   raw_images_[0].planes[VPX_PLANE_U] =
       const_cast<uint8_t*>(input_image->DataU());
   raw_images_[0].planes[VPX_PLANE_V] =
       const_cast<uint8_t*>(input_image->DataV());
 
@@ skipping 596 matching lines @@
     return -1;
   }
   if (vpx_codec_control(copy->decoder_, VP8_SET_REFERENCE, ref_frame_) !=
       VPX_CODEC_OK) {
     return -1;
   }
   return 0;
 }
 
 }  // namespace webrtc