Improve grammar in some comments.

third_party/WebKit/Source/core/layout/LayoutTableSection.cpp

Index: third_party/WebKit/Source/core/layout/LayoutTableSection.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutTableSection.cpp b/third_party/WebKit/Source/core/layout/LayoutTableSection.cpp
index b688d71ae1d43651ec015713a35d0dc3cc0546d7..04a4ea2025c27b7044e5b21262d81ad3484f702c 100644
--- a/third_party/WebKit/Source/core/layout/LayoutTableSection.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutTableSection.cpp
@@ -562,7 +562,7 @@ void LayoutTableSection::updateRowsHeightHavingOnlySpanningCells(LayoutTableCell
 }
 
 // Distribute rowSpan cell height in rows those comes in rowSpan cell based on the ratio of row's height if
-// 1. RowSpan cell height is greater then the total height of rows in rowSpan cell
+// 1. RowSpan cell height is greater than the total height of rows in rowSpan cell
 void LayoutTableSection::distributeRowSpanHeightToRows(SpanningLayoutTableCells& rowSpanCells)
 {
     ASSERT(rowSpanCells.size());
@@ -595,8 +595,8 @@ void LayoutTableSection::distributeRowSpanHeightToRows(SpanningLayoutTableCells&
         unsigned spanningCellEndIndex = rowIndex + rowSpan;
         unsigned lastSpanningCellEndIndex = lastRowIndex + lastRowSpan;
 
-        // Only heightest spanning cell will distribute it's extra height in row if more then one spanning cells
-        // present at same level.
+        // Only the highest spanning cell will distribute its extra height in a row if more than one spanning cell
+        // is present at the same level.
         if (rowIndex == lastRowIndex && rowSpan == lastRowSpan)
             continue;
 
@@ -688,8 +688,8 @@ void LayoutTableSection::distributeRowSpanHeightToRows(SpanningLayoutTableCells&
 }
 
 // Find out the baseline of the cell
-// If the cell's baseline is more then the row's baseline then the cell's baseline become the row's baseline
-// and if the row's baseline goes out of the row's boundries then adjust row height accordingly.
+// If the cell's baseline is more than the row's baseline then the cell's baseline become the row's baseline
+// and if the row's baseline goes out of the row's boundaries then adjust row height accordingly.
 void LayoutTableSection::updateBaselineForCell(LayoutTableCell* cell, unsigned row, int& baselineDescent)
 {
     if (!cell->isBaselineAligned())