More cleanup.

core/renderers/geras/highlighter.js

@@ -172,21 +172,19 @@ Blockly.geras.Highlighter.prototype.drawRightSideRow = function(row) {
 };
 
 Blockly.geras.Highlighter.prototype.drawBottomRow = function(row) {
-  var baseline = row.baseline;
-
   // Highlight the vertical edge of the bottom row on the input side.
   // Highlighting is always from the top left, both in LTR and RTL.
   if (this.RTL_) {
-    this.steps_.push('V', baseline - this.highlightOffset_);
+    this.steps_.push('V', row.baseline - this.highlightOffset_);
   } else {
     var cornerElem = this.info_.bottomRow.elements[0];
     if (Blockly.blockRendering.Types.isLeftSquareCorner(cornerElem)) {
       this.steps_.push(
           Blockly.utils.svgPaths.moveTo(
               row.xPos + this.highlightOffset_,
-              baseline - this.highlightOffset_));
+              row.baseline - this.highlightOffset_));
     } else if (Blockly.blockRendering.Types.isLeftRoundedCorner(cornerElem)) {
-      this.steps_.push(Blockly.utils.svgPaths.moveTo(row.xPos, baseline));
+      this.steps_.push(Blockly.utils.svgPaths.moveTo(row.xPos, row.baseline));
       this.steps_.push(this.outsideCornerPaths_.bottomLeft());
     }
   }

core/renderers/geras/info.js

@@ -319,8 +319,6 @@ Blockly.geras.RenderInfo.prototype.getElemCenterline_ = function(row, elem) {
     }
   } else if (Blockly.blockRendering.Types.isInlineInput(elem)) {
     result += elem.height / 2;
-  } else if (Blockly.blockRendering.Types.isNextConnection(elem)) {
-    result += (row.height - row.descenderHeight + elem.height / 2);
   } else {
     result += (row.height / 2);
   }

core/renderers/measurables/rows.js

@@ -222,13 +222,17 @@ Blockly.blockRendering.TopRow = function() {
 
   /**
    * The starting point for drawing the row, in the y direction.
-   * This allows us to draw hats and simliar shapes that don't start at the
+   * This allows us to draw hats and similar shapes that don't start at the
    * origin. Must be non-negative (see #2820).
    * @package
    * @type {number}
    */
   this.capline = 0;
 
+  /**
+   * How much the row extends up above its capline.
+   * @type {number}
+   */
   this.ascenderHeight = 0;
 
   /**
@@ -356,6 +360,11 @@ Blockly.blockRendering.BottomRow = function() {
    */
   this.descenderHeight = 0;
 
+  /**
+   * The Y position of the bottom edge of the block, relative to the origin
+   * of the block rendering.
+   * @type {number}
+   */
   this.baseline = 0;
 };
 goog.inherits(Blockly.blockRendering.BottomRow, Blockly.blockRendering.Row);

core/renderers/thrasos/info.js

@@ -316,8 +316,6 @@ Blockly.thrasos.RenderInfo.prototype.getElemCenterline_ = function(row, elem) {
     var offset = this.constants_.TALL_INPUT_FIELD_OFFSET_Y +
         elem.height / 2;
     result += offset;
-  } else if (Blockly.blockRendering.Types.isNextConnection(elem)) {
-    result += (row.height - row.descenderHeight + elem.height / 2);
   } else {
     result += (row.height / 2);
   }

core/renderers/zelos/info.js

@@ -301,14 +301,7 @@ Blockly.zelos.RenderInfo.prototype.getElemCenterline_ = function(row,
     }
     return row.capline + elem.height / 2;
   }
-
-  var result = row.yPos;
-  if (Blockly.blockRendering.Types.isNextConnection(elem)) {
-    result += (row.height - row.descenderHeight + elem.height / 2);
-  } else {
-    result += (row.height / 2);
-  }
-  return result;
+  return row.yPos + row.height / 2;
 };
 
 /**