Bug 581241 - Add a Filter placeholder string in the Web Console, r=gavin, a=johnath

toolkit/components/console/hudservice/HUDService.jsm

@@ -1807,6 +1807,7 @@ HeadsUpDisplay.prototype = {
     this.filterBox = this.makeXULNode("textbox");
     this.filterBox.setAttribute("class", "hud-filter-box");
     this.filterBox.setAttribute("hudId", this.hudId);
+    this.filterBox.setAttribute("placeholder", this.getStr("stringFilter"));
 
     this.filterClearButton = this.makeXULNode("button");
     this.filterClearButton.setAttribute("class", "hud-filter-clear");

toolkit/locales/en-US/chrome/global/headsUpDisplay.properties

@@ -33,4 +33,5 @@ tipGlobal=Toggle Global Message logging
 localConsole=Local Console
 btnClear=Clear Console
 tipClear=Clear the console output
+stringFilter=Filter
 stringFilterClear=Clear Filter