Bug 419298 - Dialog icons should be displayed in the native OS theme size without scaling. r=neil

toolkit/components/prompts/content/commonDialog.xul

@@ -51,7 +51,7 @@
 
     <rows>
       <row>
-        <hbox align="start">
+        <hbox id="iconContainer" align="start">
           <image id="info.icon" class="spaced"/>
         </hbox>
         <vbox id="infoContainer">

toolkit/themes/gnomestripe/global/commonDialog.css

@@ -0,0 +1,18 @@
+#filler {
+  -moz-margin-start: -8px;
+  -moz-margin-end: -10px;
+}
+
+#iconContainer {
+  -moz-box-pack: center;
+  min-height: 55px; /* maximum icon height + icon margin */
+  min-width: 58px; /* maximum icon width + icon margin */
+}
+
+#info\.icon {
+  max-width: 48px;
+  max-height: 48px;
+  /* The 'spaced' class does this already. It's repeated here to make it clearer
+     what margin values the #iconContainer's min-height and max-height depend on: */
+  margin: 3px 5px 4px;
+}

toolkit/themes/gnomestripe/global/global.css

@@ -94,15 +94,6 @@ window.dialog {
 
 /* ::::: alert icons :::::*/
 
-.message-icon,
-.alert-icon,
-.error-icon,
-.question-icon,
-.authentication-icon {
-  width: 40px;
-  height: 40px;
-}
-
 .message-icon {
   list-style-image: url("moz-icon://stock/gtk-dialog-info?size=dialog");
 }

toolkit/themes/gnomestripe/global/jar.mn

@@ -2,6 +2,7 @@ toolkit.jar:
 +  skin/classic/global/autocomplete.css
 +  skin/classic/global/button.css
 +  skin/classic/global/checkbox.css
++  skin/classic/global/commonDialog.css
 +  skin/classic/global/dropmarker.css
 +  skin/classic/global/filefield.css
 +  skin/classic/global/filepicker.css