Add ScrollDirectionPhysical enum in Scroll types.

Source/web/WebFrameWidgetImpl.cpp

 /*
  * Copyright (C) 2014 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 868 matching lines @@
     return false;
 }
 
 bool WebFrameWidgetImpl::mapKeyCodeForScroll(
     int keyCode,
     ScrollDirection* scrollDirection,
     ScrollGranularity* scrollGranularity)
 {
     switch (keyCode) {
     case VKEY_LEFT:
-        *scrollDirection = ScrollLeft;
+        *scrollDirection = ScrollLeftIgnoringWritingMode;
         *scrollGranularity = ScrollByLine;
         break;
     case VKEY_RIGHT:
-        *scrollDirection = ScrollRight;
+        *scrollDirection = ScrollRightIgnoringWritingMode;
         *scrollGranularity = ScrollByLine;
         break;
     case VKEY_UP:
-        *scrollDirection = ScrollUp;
+        *scrollDirection = ScrollUpIgnoringWritingMode;
         *scrollGranularity = ScrollByLine;
         break;
     case VKEY_DOWN:
-        *scrollDirection = ScrollDown;
+        *scrollDirection = ScrollDownIgnoringWritingMode;
         *scrollGranularity = ScrollByLine;
         break;
     case VKEY_HOME:
-        *scrollDirection = ScrollUp;
+        *scrollDirection = ScrollUpIgnoringWritingMode;
         *scrollGranularity = ScrollByDocument;
         break;
     case VKEY_END:
-        *scrollDirection = ScrollDown;
+        *scrollDirection = ScrollDownIgnoringWritingMode;
         *scrollGranularity = ScrollByDocument;
         break;
     case VKEY_PRIOR: // page up
-        *scrollDirection = ScrollUp;
+        *scrollDirection = ScrollUpIgnoringWritingMode;
         *scrollGranularity = ScrollByPage;
         break;
     case VKEY_NEXT: // page down
-        *scrollDirection = ScrollDown;
+        *scrollDirection = ScrollDownIgnoringWritingMode;
         *scrollGranularity = ScrollByPage;
         break;
     default:
         return false;
     }
 
     return true;
 }
 
 Frame* WebFrameWidgetImpl::focusedCoreFrame() const
@@ skipping 127 matching lines @@
     // correspond to Page visibility, but is necessary until we properly sort out OOPIF visibility.
     m_page->setVisibilityState(static_cast<PageVisibilityState>(visibilityState), isInitialState);
 
     if (m_layerTreeView) {
         bool visible = visibilityState == WebPageVisibilityStateVisible;
         m_layerTreeView->setVisible(visible);
     }
 }
 
 } // namespace blink