Switch to TimeDelta interfaces in chrome automation test infrastructure.

chrome/test/automation/dom_automation_browsertest.cc

 // Copyright (c) 2012 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/memory/ref_counted.h"
 #include "base/string_number_conversions.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/test/automation/dom_element_proxy.h"
 #include "chrome/test/automation/javascript_execution_controller.h"
 #include "chrome/browser/ui/browser.h"
@@ skipping 37 matching lines @@
   ASSERT_TRUE(proxy->is_valid());
   if (!proxy->DoesAttributeEventuallyMatch(attribute, new_value))
     FAIL() << "Executing or parsing JavaScript failed";
 }
 
 // Tests the DOMAutomation framework for manipulating DOMElements within
 // browser tests.
 class DOMAutomationTest : public InProcessBrowserTest {
  public:
   DOMAutomationTest() {
-    JavaScriptExecutionController::set_timeout(30000);
+    JavaScriptExecutionController::set_timeout(
+        base::TimeDelta::FromSeconds(30));
   }
 
   GURL GetTestURL(const char* path) {
     std::string url_path = "files/dom_automation/";
     url_path.append(path);
     return test_server()->GetURL(url_path);
   }
 };
 
 typedef DOMElementProxy::By By;
@@ skipping 266 matching lines @@
       L"' \""
   };
   for (size_t i = 0; i < 3; i++) {
     ASSERT_TRUE(textarea->SetText(WideToUTF8(set_and_expect_strings[i])));
     ASSERT_NO_FATAL_FAILURE(EnsureTextMatches(
         textarea, WideToUTF8(set_and_expect_strings[i])));
   }
 }
 
 }  // namespace