Small test and ChromeDriver fixes to enable additional tests.

chrome/test/webdriver/commands/webelement_commands.cc

 // Copyright (c) 2010 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 "chrome/test/webdriver/commands/webelement_commands.h"
 
 #include "base/scoped_ptr.h"
 #include "base/stringprintf.h"
 #include "base/third_party/icu/icu_utf.h"
 #include "base/values.h"
@@ skipping 137 matching lines @@
     DictionaryValue* parameters)
     : WebElementCommand(path_segments, parameters) {}
 
 ElementDisplayedCommand::~ElementDisplayedCommand() {}
 
 bool ElementDisplayedCommand::DoesGet() {
   return true;
 }
 
 void ElementDisplayedCommand::ExecuteGet(Response* const response) {
-  scoped_ptr<ListValue> args(new ListValue);
-  args->Append(element.ToValue());
-
-  std::string script = base::StringPrintf(
-      "return (%s).apply(null, arguments);", atoms::IS_DISPLAYED);
-
-  Value* result = NULL;
-  ErrorCode status = session_->ExecuteScript(script, args.get(), &result);
+  bool is_displayed;
+  ErrorCode status = session_->IsElementDisplayed(
+      session_->current_target(), element, &is_displayed);
+  if (status == kSuccess)
+    response->SetValue(Value::CreateBooleanValue(is_displayed));
   response->SetStatus(status);
-  response->SetValue(result);
 }
 
 ///////////////////// ElementEnabledCommand ////////////////////
 
 ElementEnabledCommand::ElementEnabledCommand(
     const std::vector<std::string>& path_segments,
     DictionaryValue* parameters)
     : WebElementCommand(path_segments, parameters) {}
 
 ElementEnabledCommand::~ElementEnabledCommand() {}
@@ skipping 356 matching lines @@
     SET_WEBDRIVER_ERROR(response,
                         "Result is not string type",
                         kInternalServerError);
     return;
   }
   response->SetStatus(kSuccess);
   response->SetValue(result.release());
 }
 
 }  // namespace webdriver