Support javascript gtests in an extension background page.

chrome/test/base/js2gtest.js

Index: chrome/test/base/js2gtest.js
diff --git a/chrome/test/base/js2gtest.js b/chrome/test/base/js2gtest.js
index 9cf8fef1ffd7970a453bcb7fd841aae2f5c2b199..5c9df0881b8b33a4e52fcfbc6c65f9e33cc2d31b 100644
--- a/chrome/test/base/js2gtest.js
+++ b/chrome/test/base/js2gtest.js
@@ -76,7 +76,8 @@ var genIncludes = [];
 /**
  * When true, add calls to set_preload_test_(fixture|name). This is needed when
  * |testType| === 'browser' to send an injection message before the page loads,
- * but is not required or supported for |testType| === 'unit'.
+ * but is not required or supported for |testType| === 'chromevox' or
+ * |testType| === 'unit'.
  * @type {boolean}
  */
 var addSetPreloadInfo;
@@ -90,9 +91,17 @@ print();
 // Output some C++ headers based upon the |testType|.
 //
 // Currently supports:
+// 'chromevox' - browser_tests harness, js2chromevox rule, ChromeVoxBrowserTest
+//               superclass.
 // 'unit' - unit_tests harness, js2unit rule, V8UnitTest superclass.
 // 'webui' - browser_tests harness, js2webui rule, WebUIBrowserTest superclass.
-if (testType === 'unit') {
+if (testType === 'chromevox') {
+  print('#include "chrome/browser/resources/chromeos/chromevox/' +
+      'chromevox_browsertest.h"');
+  testing.Test.prototype.typedefCppFixture = 'ChromeVoxBrowserTest';
+  addSetPreloadInfo = false;
+  testF = 'IN_PROC_BROWSER_TEST_F';
+} else if (testType === 'unit') {
   print('#include "chrome/test/base/v8_unit_test.h"');
   testing.Test.prototype.typedefCppFixture = 'V8UnitTest';
   testF = 'TEST_F';