Moved the flex value for the widget width out to .dtd file,

bug 150756, r=naving, sr=mscott.

mailnews/base/search/resources/content/searchTermOverlay.xul

@@ -41,13 +41,13 @@
       <hbox id="searchterms"/>
       <listbox flex="1" id="searchTermList">
         <listcols>
-          <listcol flex="1"/>
-          <listcol flex="4"/>
-          <listcol flex="0"/>
-          <listcol flex="4"/>
-          <listcol flex="0"/>
-          <listcol flex="4"/>
-          <listcol flex="1"/>
+          <listcol flex="&searchTermListSpace1FlexValue;"/>
+          <listcol flex="&searchTermListAttributesFlexValue;"/>
+          <listcol flex="&searchTermListSpace2FlexValue;"/>
+          <listcol flex="&searchTermListOperatorsFlexValue;"/>
+          <listcol flex="&searchTermListSpace3FlexValue;"/>
+          <listcol flex="&searchTermListValueFlexValue;"/>
+          <listcol flex="&searchTermListSpace4FlexValue;"/>
         </listcols>
 
         <!-- this is what the listitems will look like:

mailnews/base/search/resources/locale/en-US/searchTermOverlay.dtd

@@ -6,4 +6,16 @@
 <!ENTITY matchAll.accesskey "a">
 <!ENTITY matchAny.label     "Match any of the following">
 <!ENTITY matchAny.accesskey "o">
+<!-- LOCALIZATION NOTE  
+  The values below are used to control the widths of the search widgets.
+  Change the values only when the localized strings in the popup menus
+  are truncated in the widgets.
+ -->
+<!ENTITY searchTermListSpace1FlexValue "1">
+<!ENTITY searchTermListAttributesFlexValue "4">
+<!ENTITY searchTermListSpace2FlexValue "0">
+<!ENTITY searchTermListOperatorsFlexValue "4">
+<!ENTITY searchTermListSpace3FlexValue "0">
+<!ENTITY searchTermListValueFlexValue "4">
+<!ENTITY searchTermListSpace4FlexValue "1">