Retry to add MockPresentationClient to use in layout tests.

content/shell/renderer/test_runner/test_runner.h

 // Copyright 2014 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_TEST_RUNNER_H_
 #define CONTENT_SHELL_RENDERER_TEST_RUNNER_TEST_RUNNER_H_
 
 #include <deque>
 #include <set>
 #include <string>
@@ skipping 292 matching lines @@
                                 bool has_absolute, bool absolute);
 
   void SetMockScreenOrientation(const std::string& orientation);
 
   void DidChangeBatteryStatus(bool charging,
                               double chargingTime,
                               double dischargingTime,
                               double level);
   void ResetBatteryStatus();
 
+  // Presentation API related functions.
+  void SetMockScreenAvailability(bool available);
+
   void DidAcquirePointerLock();
   void DidNotAcquirePointerLock();
   void DidLosePointerLock();
   void SetPointerLockWillFailSynchronously();
   void SetPointerLockWillRespondAsynchronously();
 
   ///////////////////////////////////////////////////////////////////////////
   // Methods modifying WebPreferences.
 
   // Set the WebPreference that controls webkit's popup blocking.
@@ skipping 476 matching lines @@
   bool use_mock_theme_;
 
   base::WeakPtrFactory<TestRunner> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(TestRunner);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_SHELL_RENDERER_TEST_RUNNER_TEST_RUNNER_H_