Selection API: collapse() should recreate an internal Range.

third_party/WebKit/Source/core/testing/Internals.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013 Apple 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 2589 matching lines @@
 
 void Internals::forceReload(bool bypassCache) {
   if (!frame())
     return;
 
   frame()->reload(bypassCache ? FrameLoadTypeReloadBypassingCache
                               : FrameLoadTypeReloadMainResource,
                   ClientRedirectPolicy::NotClientRedirect);
 }
 
+Node* Internals::visibleSelectionAnchorNode() {
+  if (!frame())
+    return nullptr;
+  Position position = frame()->selection().base();
+  return position.isNull() ? nullptr : position.computeContainerNode();
+}
+
+unsigned Internals::visibleSelectionAnchorOffset() {
+  if (!frame())
+    return 0;
+  Position position = frame()->selection().base();
+  return position.isNull() ? 0 : position.computeOffsetInContainerNode();
+}
+
+Node* Internals::visibleSelectionFocusNode() {
+  if (!frame())
+    return nullptr;
+  Position position = frame()->selection().extent();
+  return position.isNull() ? nullptr : position.computeContainerNode();
+}
+
+unsigned Internals::visibleSelectionFocusOffset() {
+  if (!frame())
+    return 0;
+  Position position = frame()->selection().extent();
+  return position.isNull() ? 0 : position.computeOffsetInContainerNode();
+}
+
 ClientRect* Internals::selectionBounds(ExceptionState& exceptionState) {
   if (!frame()) {
     exceptionState.throwDOMException(
         InvalidAccessError, "The document's frame cannot be retrieved.");
     return nullptr;
   }
 
   return ClientRect::create(FloatRect(frame()->selection().bounds()));
 }
 
@@ skipping 499 matching lines @@
 
 void Internals::crash() {
   CHECK(false) << "Intentional crash";
 }
 
 void Internals::setIsLowEndDevice(bool isLowEndDevice) {
   MemoryCoordinator::setIsLowEndDeviceForTesting(isLowEndDevice);
 }
 
 }  // namespace blink