[DevTools] Use InspectorFrontendHost.readyForTest for layout tests.

components/test_runner/web_test_delegate.h

 // Copyright 2013 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.
 
 #ifndef COMPONENTS_TEST_RUNNER_WEB_TEST_DELEGATE_H_
 #define COMPONENTS_TEST_RUNNER_WEB_TEST_DELEGATE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 118 matching lines @@
 
   // Clears DevTools' localStorage when an inspector test is started.
   virtual void ClearDevToolsLocalStorage() = 0;
 
   // Opens and closes the inspector.
   virtual void ShowDevTools(const std::string& settings,
                             const std::string& frontend_url) = 0;
   virtual void CloseDevTools() = 0;
 
   // Evaluate the given script in the DevTools agent.
-  virtual void EvaluateInWebInspector(long call_id,
+  virtual void EvaluateInWebInspector(int call_id,
                                       const std::string& script) = 0;
 
   // Evaluate the given script in the inspector overlay page.
   virtual std::string EvaluateInWebInspectorOverlay(
       const std::string& script) = 0;
 
   // Controls WebSQL databases.
   virtual void ClearAllDatabases() = 0;
   virtual void SetDatabaseQuota(int quota) = 0;
 
@@ skipping 125 matching lines @@
     const blink::WebPluginParams& params) = 0;
 
   // Convert the position in DIP to native coordinates.
   virtual blink::WebPoint ConvertDIPToNative(
       const blink::WebPoint& point_in_dip) const = 0;
 };
 
 }  // namespace test_runner
 
 #endif  // COMPONENTS_TEST_RUNNER_WEB_TEST_DELEGATE_H_