Support screen.lockOrientation() / screen.unlockOrientation() when running layout tests

content/test/layouttest_support.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 "content/public/test/layouttest_support.h"
 
 #include "base/callback.h"
 #include "base/lazy_instance.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/common/gpu/image_transport_surface.h"
@@ skipping 90 matching lines @@
   RendererWebKitPlatformSupportImpl::
       SetMockDeviceOrientationDataForTesting(data);
 }
 
 void SetMockScreenOrientation(
     const blink::WebScreenOrientationType& orientation) {
   RendererWebKitPlatformSupportImpl::
       SetMockScreenOrientationForTesting(orientation);
 }
 
+void ResetMockScreenOrientation()
+{
+  RendererWebKitPlatformSupportImpl::ResetMockScreenOrientationForTesting();
+}
+
 void EnableRendererLayoutTestMode() {
   RenderThreadImpl::current()->set_layout_test_mode(true);
 }
 
 void EnableBrowserLayoutTestMode() {
 #if defined(OS_MACOSX)
   ImageTransportSurface::SetAllowOSMesaForTesting(true);
   PopupMenuHelper::DontShowPopupMenuForTesting();
 #endif
   RenderWidgetHostImpl::DisableResizeAckCheckForTesting();
@@ skipping 174 matching lines @@
     result.append(
         DumpHistoryItem(entry->root_history_node(),
                         8,
                         index == current_index));
   }
   result.append("===============================================\n");
   return result;
 }
 
 }  // namespace content