[css-flexbox] Clarify non-frozen in several spots.

Author: tabatkins

css-flexbox/Overview.html

@@ -2352,8 +2352,7 @@ <h3 class="heading settled heading" data-level=9.7 id=resolve-flexible-lengths><
 			<ol>
 				<li>
 					<strong>Check that you can distribute any space.</strong>
-					If all the flex items on the line are either frozen
-					or have a flex factor of zero,
+					If all the non-frozen flex items on the line have a flex factor of zero,
 					exit the algorithm.
 
 				<li>
@@ -2365,27 +2364,27 @@ <h3 class="heading settled heading" data-level=9.7 id=resolve-flexible-lengths><
 				<li>
 					<strong>Normalize desired free space if necessary.</strong>
 					If the free space is positive,
-					and the sum of the <var>desired free spaces</var> of all the flex items on the line
+					and the sum of the <var>desired free spaces</var> of all the non-frozen flex items on the line
 					is greater than the free space,
 					normalize all the <var>desired free spaces</var> so that they sum exactly to the free space
 					while maintaining their magnitudes relative to each other.
 
 <p>					Otherwise, if the free space is negative,
-					and the sum of the <var>desired free spaces</var> of all the flex items on the line
+					and the sum of the <var>desired free spaces</var> of all the non-frozen flex items on the line
 					is less than the free space,
 					normalize all the <var>desired free spaces</var> so that they sum exactly to the free space
 					while maintaining their magnitudes relative to each other.
 
 				<li>
 					<strong>Adjust main size.</strong>
-					Set each item’s used main size
-					to its <a data-link-type=dfn href=#flex-base-size title="flex base size">flex base size</a> plus its <var>desired free space</var>.
+					Set each non-frozen flex item’s used main size
+					to the sum of it’s <a data-link-type=dfn href=#flex-base-size title="flex base size">flex base size</a> and it’s <var>desired free space</var>.
 
 <p class=note>					Note: This may result in a negative main size temporarily.
 
 				<li>
 					<strong>Fix min/max violations.</strong>
-					Clamp each item’s main size by its min and max main size properties.
+					Clamp each non-frozen item’s main size by its min and max main size properties.
 					If the item’s main size was made smaller by this, it’s a max violation.
 					If the item’s main size was made larger by this, it’s a min violation.
 

css-flexbox/Overview.src.html

@@ -2339,8 +2339,7 @@ <h3 id='resolve-flexible-lengths'>
 			<ol>
 				<li>
 					<strong>Check that you can distribute any space.</strong>
-					If all the flex items on the line are either frozen
-					or have a flex factor of zero,
+					If all the non-frozen flex items on the line have a flex factor of zero,
 					exit the algorithm.
 
 				<li>
@@ -2352,27 +2351,27 @@ <h3 id='resolve-flexible-lengths'>
 				<li>
 					<strong>Normalize desired free space if necessary.</strong>
 					If the free space is positive,
-					and the sum of the <var>desired free spaces</var> of all the flex items on the line
+					and the sum of the <var>desired free spaces</var> of all the non-frozen flex items on the line
 					is greater than the free space,
 					normalize all the <var>desired free spaces</var> so that they sum exactly to the free space
 					while maintaining their magnitudes relative to each other.
 
 					Otherwise, if the free space is negative,
-					and the sum of the <var>desired free spaces</var> of all the flex items on the line
+					and the sum of the <var>desired free spaces</var> of all the non-frozen flex items on the line
 					is less than the free space,
 					normalize all the <var>desired free spaces</var> so that they sum exactly to the free space
 					while maintaining their magnitudes relative to each other.
 
 				<li>
 					<strong>Adjust main size.</strong>
-					Set each item's used main size
-					to its <a>flex base size</a> plus its <var>desired free space</var>.
+					Set each non-frozen flex item's used main size
+					to the sum of it's <a>flex base size</a> and it's <var>desired free space</var>.
 
 					Note: This may result in a negative main size temporarily.
 
 				<li>
 					<strong>Fix min/max violations.</strong>
-					Clamp each item's main size by its min and max main size properties.
+					Clamp each non-frozen item's main size by its min and max main size properties.
 					If the item's main size was made smaller by this, it's a max violation.
 					If the item's main size was made larger by this, it's a min violation.