Make anchors mouse-focusable

Source/core/page/FocusController.cpp

 /*
  * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nuanti Ltd.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 695 matching lines @@
 
     clearSelectionIfNeeded(oldFocusedFrame.get(), toLocalFrame(newFocusedFrame.get()), element);
 
     if (oldDocument && oldDocument != newDocument)
         oldDocument->setFocusedElement(nullptr);
 
     if (newFocusedFrame && !newFocusedFrame->page()) {
         setFocusedFrame(nullptr);
         return false;
     }
+
+    if (type != FocusTypePage)
+        m_wasFocusedByMouse = type == FocusTypeMouse;
+
     setFocusedFrame(newFocusedFrame);
 
     // Setting the focused node can result in losing our last reft to node when JS event handlers fire.
     RefPtrWillBeRawPtr<Element> protect ALLOW_UNUSED = element;
     if (newDocument) {
         bool successfullyFocused = newDocument->setFocusedElement(element, type);
         if (!successfullyFocused)
             return false;
     }
 
     return true;
 }
 
+bool FocusController::setWasFocusedByMouse(bool wasFocusedByMouse)
+{
+    if (m_wasFocusedByMouse != wasFocusedByMouse) {
+        m_wasFocusedByMouse = wasFocusedByMouse;
+        return true;
+    }
+    return false;
+}
+
 void FocusController::setActive(bool active)
 {
     if (m_isActive == active)
         return;
 
     m_isActive = active;
 
     Frame* frame = focusedOrMainFrame();
     if (frame->isLocalFrame())
         toLocalFrame(frame)->selection().pageActivationChanged();
@@ skipping 186 matching lines @@
         startingRect = nodeRectInAbsoluteCoordinates(container, true /* ignore border */);
         container = scrollableEnclosingBoxOrParentFrameForNodeInDirection(type, container);
         if (container && container->isDocumentNode())
             toDocument(container)->updateLayoutIgnorePendingStylesheets();
     } while (!consumed && container);
 
     return consumed;
 }
 
 } // namespace blink