Cleanup some comments.

Change-Id: I568861ba1d43620865ad9a98a97eef37a51fd856

vp8/encoder/firstpass.c

@@ -2444,10 +2444,10 @@ void vp8_second_pass(VP8_COMP *cpi)
         find_next_key_frame(cpi, &this_frame_copy);
 
         /* Special case: Error error_resilient_mode mode does not make much
-         * sense for two pass but with its current meaning but this code is
+         * sense for two pass but with its current meaning this code is
          * designed to stop outlandish behaviour if someone does set it when
          * using two pass. It effectively disables GF groups. This is
-         * temporary code till we decide what should really happen in this
+         * temporary code until we decide what should really happen in this
          * case.
          */
         if (cpi->oxcf.error_resilient_mode)
@@ -2773,7 +2773,7 @@ static void find_next_key_frame(VP8_COMP *cpi, FIRSTPASS_STATS *this_frame)
         kf_group_intra_err += this_frame->intra_error;
         kf_group_coded_err += this_frame->coded_error;
 
-        /* load a the next frame's stats */
+        /* Load the next frame's stats. */
         vpx_memcpy(&last_frame, this_frame, sizeof(*this_frame));
         input_stats(cpi, this_frame);
 

vp8/encoder/onyx_if.c

@@ -2681,8 +2681,8 @@ static int resize_key_frame(VP8_COMP *cpi)
     VP8_COMMON *cm = &cpi->common;
 
     /* Do we need to apply resampling for one pass cbr.
-     * In one pass this is more limited than in two pass cbr
-     * The test and any change is only made one per key frame sequence
+     * In one pass this is more limited than in two pass cbr.
+     * The test and any change is only made once per key frame sequence.
      */
     if (cpi->oxcf.allow_spatial_resampling && (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER))
     {
@@ -2705,7 +2705,7 @@ static int resize_key_frame(VP8_COMP *cpi)
             cm->vert_scale = (cm->vert_scale > NORMAL) ? cm->vert_scale - 1 : NORMAL;
         }
 
-        /* Get the new hieght and width */
+        /* Get the new height and width */
         Scale2Ratio(cm->horiz_scale, &hr, &hs);
         Scale2Ratio(cm->vert_scale, &vr, &vs);
         new_width = ((hs - 1) + (cpi->oxcf.Width * hr)) / hs;

vp9/common/vp9_reconinter.c

@@ -139,9 +139,6 @@ MV clamp_mv_to_umv_border_sb(const MACROBLOCKD *xd, const MV *src_mv,
   return clamped_mv;
 }
 
-// TODO(jkoleszar): In principle, pred_w, pred_h are unnecessary, as we could
-// calculate the subsampled BLOCK_SIZE, but that type isn't defined for
-// sizes smaller than 16x16 yet.
 static void build_inter_predictors(MACROBLOCKD *xd, int plane, int block,
                                    int bw, int bh,
                                    int x, int y, int w, int h,