Added options browser_tests using the generator and js handler framework.

chrome/browser/ui/webui/print_preview_browsertest.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/command_line.h"
 #include "base/path_service.h"
 #include "base/stringprintf.h"
 #include "base/values.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/webui/web_ui_browsertest.h"
@@ skipping 16 matching lines @@
                                               load_start_observer);
   TabContents* initiator_tab_contents = browser->GetSelectedTabContents();
   browser->Print();
   tabstrip_observer.WaitForObservation();
   EXPECT_NE(initiator_tab_contents, browser->GetSelectedTabContents());
 }
 
 }  // namespace
 
 class PrintPreviewWebUITest
-    : public WebUIBrowserTest,
-      public TestTabStripModelObserver::LoadStartObserver {
+    : public WebUIBrowserTest {
  protected:
   // WebUIBrowserTest:
   virtual void SetUpOnMainThread() OVERRIDE {
     WebUIBrowserTest::SetUpOnMainThread();
     if (!HasPDFLib())
       skipTest(base::StringPrintf("%s:%d: No PDF Lib.", __FILE__, __LINE__));
 
+    override_chrome_send_ = true;
     AddLibrary(FilePath(FILE_PATH_LITERAL("print_preview.js")));
     GURL print_preview_test_url = WebUITestDataPathToURL(
         FILE_PATH_LITERAL("print_preview_hello_world_test.html"));
     ui_test_utils::NavigateToURL(browser(), print_preview_test_url);
     PrintAndWaitForPrintPreviewTab(browser(), this);
   }
 
   virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
     WebUIBrowserTest::SetUpCommandLine(command_line);
 #if !defined(GOOGLE_CHROME_BUILD) || defined(OS_CHROMEOS) || defined(OS_MACOSX)
     // Don't enable the flag for chrome builds, which should be on by default.
     command_line->AppendSwitch(switches::kEnablePrintPreview);
 #else
     ASSERT_TRUE(switches::IsPrintPreviewEnabled());
 #endif
   }
 
-  // TestTabStripModelObserver::LoadStartObserver:
-  virtual void OnLoadStart() OVERRIDE {
-    PreLoadJavascriptLibraries(true);
-  }
-
   bool HasPDFLib() const {
     FilePath pdf;
     return PathService::Get(chrome::FILE_PDF_PLUGIN, &pdf) &&
         file_util::PathExists(pdf);
   }
 };
 
 IN_PROC_BROWSER_TEST_F(PrintPreviewWebUITest, FLAKY_TestPrintPreview) {
   ASSERT_TRUE(RunJavascriptTest("testPrintPreview",
                                 *Value::CreateBooleanValue(HasPDFLib())));
 }