Added options browser_tests using the generator and js handler framework.

chrome/browser/ui/webui/web_ui_browsertest.cc

Index: chrome/browser/ui/webui/web_ui_browsertest.cc
diff --git a/chrome/browser/ui/webui/web_ui_browsertest.cc b/chrome/browser/ui/webui/web_ui_browsertest.cc
index 89d7e0ab57705851817954a1f013ef395363d351..bca4e658f9acfaa773aafc85bef304c8be76b2b5 100644
--- a/chrome/browser/ui/webui/web_ui_browsertest.cc
+++ b/chrome/browser/ui/webui/web_ui_browsertest.cc
@@ -11,9 +11,11 @@
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/ui/browser.h"
+#include "chrome/browser/ui/browser_navigator.h"
 #include "chrome/browser/ui/webui/test_chrome_web_ui_factory.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/url_constants.h"
+#include "chrome/test/test_navigation_observer.h"
 #include "chrome/test/ui_test_utils.h"
 #include "content/browser/tab_contents/tab_contents.h"
 #include "content/browser/webui/web_ui.h"
@@ -105,10 +107,23 @@ void WebUIBrowserTest::PreLoadJavascriptLibraries(bool override_chrome_send) {
 }
 
 WebUIBrowserTest::WebUIBrowserTest()
-    : test_handler_(new WebUITestHandler()),
+    : override_chrome_send_(false),
+      test_handler_(new WebUITestHandler()),
       libraries_preloaded_(false),
       skip_test_(false) {}
 
+void WebUIBrowserTest::BrowsePreload(const GURL& browse_to,
+                                     bool override_chrome_send) {
+  override_chrome_send_ = override_chrome_send;
+  TestNavigationObserver navigation_observer(
+      browser()->GetSelectedTabContentsWrapper(), this);
+  browser::NavigateParams params(
+      browser(), GURL(browse_to), PageTransition::TYPED);
+  params.disposition = CURRENT_TAB;
+  browser::Navigate(&params);
+  navigation_observer.WaitForObservation();
+}
+
 void WebUIBrowserTest::SetUpInProcessBrowserTestFixture() {
   ASSERT_TRUE(PathService::Get(chrome::DIR_TEST_DATA, &test_data_directory_));
   test_data_directory_ = test_data_directory_.Append(kWebUITestFolder);
@@ -140,9 +155,27 @@ GURL WebUIBrowserTest::WebUITestDataPathToURL(
   return net::FilePathToFileURL(test_path);
 }
 
+// TestTabStripModelObserver::LoadStartObserver:
+void  WebUIBrowserTest::OnLoadStart() OVERRIDE {
+  PreLoadJavascriptLibraries(override_chrome_send_);
+}
+
 void WebUIBrowserTest::BuildJavascriptLibraries(std::string* content) {
   ASSERT_TRUE(content != NULL);
-  std::string library_content, src_content;
+  std::string library_content;
+
+#if defined(OS_MACOSX)
+  content->append("var OS_MACOSX = 1;");
+#endif
+#if defined(OS_CHROMEOS)
+  content->append("var OS_CHROMEOS = 1;");
+#endif
+#if defined(OS_WIN)
+  content->append("var OS_WIN = 1;");
+#endif
+#if defined(TOUCH_UI)
+  content->append("var TOUCH_UI = 1;");
+#endif
 
   std::vector<FilePath>::iterator user_libraries_iterator;
   for (user_libraries_iterator = user_libraries_.begin();