Switch from DRT to content shell.

pkg/unittest/lib/coverage_controller.js

Index: pkg/unittest/lib/coverage_controller.js
diff --git a/pkg/unittest/lib/coverage_controller.js b/pkg/unittest/lib/coverage_controller.js
index 78ddb9dcd842af569868e5469a6e526897065224..1cf21ae1d45c55506e1aa7c11748c7f0db0ec3ff 100644
--- a/pkg/unittest/lib/coverage_controller.js
+++ b/pkg/unittest/lib/coverage_controller.js
@@ -4,7 +4,7 @@
 
 /**
  * Coverage controller logic - used by coverage test harness to embed tests in
- * DumpRenderTree and extract coverage information.
+ * content shell and extract coverage information.
  */
 
 var LONG_LINE = 60000;
@@ -13,7 +13,7 @@ function onReceive(e) {
   if (e.data == 'unittest-suite-done') {
     var s = JSON.stringify(top._$jscoverage);
     var res = '';
-    // DumpRenderTree has a bug on lines longer than 2^16, so we split them
+    // conent shell has a bug on lines longer than 2^16, so we split them
     while (s.length > LONG_LINE) {
       res += s.substr(0, LONG_LINE) + '<br>\n';
       s = s.substr(LONG_LINE);