Bug 703122 - console.group is not cleared; r=msucan

browser/devtools/webconsole/HUDService.jsm

@@ -5129,6 +5129,7 @@ JSTerm.prototype = {
     }
 
     hud.HUDBox.lastTimestamp = 0;
+    hud.groupDepth = 0;
   },
 
   /**

browser/devtools/webconsole/test/browser/browser_webconsole_bug_664131_console_group.js

@@ -43,6 +43,14 @@ function onLoad(aEvent) {
   is(msg.length, 4, "four message nodes displayed");
   is(msg[3].style.marginLeft, GROUP_INDENT + "px", "correct group indent found");
 
+  // Test that clearing the console removes the indentation.
+  hud.jsterm.clearOutput();
+  content.console.log("cleared");
+  findLogEntry("cleared");
+  let msg = outputNode.querySelectorAll(".webconsole-msg-icon-container");
+  is(msg.length, 1, "one message node displayed");
+  is(msg[0].style.marginLeft, "0px", "correct group indent found");
+
   finishTest();
 }