Added MockPresentationClient to use in layout tests.

content/shell/renderer/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 CONTENT_SHELL_RENDERER_TEST_RUNNER_WEB_TEST_DELEGATE_H_
 #define CONTENT_SHELL_RENDERER_TEST_RUNNER_WEB_TEST_DELEGATE_H_
 
 #include <string>
 
 #include "third_party/WebKit/public/platform/WebScreenOrientationType.h"
@@ skipping 52 matching lines @@
   virtual void SetScreenOrientation(
       const blink::WebScreenOrientationType& orientation) = 0;
 
   // Reset the screen orientation data used for testing.
   virtual void ResetScreenOrientation() = 0;
 
   // Notifies blink about a change in battery status.
   virtual void DidChangeBatteryStatus(
       const blink::WebBatteryStatus& status) = 0;
 
+  // Sets second screen availability for the Presentation API.
+  virtual void SetScreenAvailability(bool available) = 0;
+
   // Add a message to the text dump for the layout test.
   virtual void PrintMessage(const std::string& message) = 0;
 
   // The delegate takes ownership of the WebTask objects and is responsible
   // for deleting them.
   virtual void PostTask(WebTask* task) = 0;
   virtual void PostDelayedTask(WebTask* task, long long ms) = 0;
 
   // Register a new isolated filesystem with the given files, and return the
   // new filesystem id.
@@ skipping 116 matching lines @@
   virtual bool AllowExternalPages() = 0;
 
   // Returns a text dump the back/forward history for the WebView associated
   // with the given WebTestProxyBase.
   virtual std::string DumpHistoryForWindow(WebTestProxyBase* proxy) = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_SHELL_RENDERER_TEST_RUNNER_WEB_TEST_DELEGATE_H_