Convert WebRange to be a simple pair of numbers.

third_party/WebKit/Source/web/WebSurroundingText.cpp

 /*
  * Copyright (C) 2012 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:
  * 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
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 10 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "public/web/WebSurroundingText.h"
 
 #include "core/dom/Element.h"
 #include "core/dom/Node.h"
 #include "core/dom/Range.h"
 #include "core/dom/Text.h"
+#include "core/editing/FrameSelection.h"
 #include "core/editing/SurroundingText.h"
 #include "core/editing/VisiblePosition.h"
 #include "core/layout/LayoutObject.h"
 #include "public/platform/WebPoint.h"
 #include "public/web/WebHitTestResult.h"
+#include "web/WebLocalFrameImpl.h"
 
 namespace blink {
 
 WebSurroundingText::WebSurroundingText()
 {
 }
 
 WebSurroundingText::~WebSurroundingText()
 {
 }
 
 void WebSurroundingText::initialize(const WebNode& webNode, const WebPoint& nodePoint, size_t maxLength)
 {
     const Node* node = webNode.constUnwrap<Node>();
     if (!node || !node->layoutObject())
         return;
 
     m_private.reset(new SurroundingText(createVisiblePosition(node->layoutObject()->positionForPoint(static_cast<IntPoint>(nodePoint))).deepEquivalent().parentAnchoredEquivalent(), maxLength));
 }
 
-void WebSurroundingText::initialize(const WebRange& webRange, size_t maxLength)
+void WebSurroundingText::initializeFromCurrentSelection(WebLocalFrame* frame, size_t maxLength)
 {
-    if (Range* range = static_cast<Range*>(webRange))
+    LocalFrame* webFrame = toWebLocalFrameImpl(frame)->frame();
+    if (Range* range = createRange(webFrame->selection().selection().toNormalizedEphemeralRange()))
         m_private.reset(new SurroundingText(*range, maxLength));
 }
 
 WebString WebSurroundingText::textContent() const
 {
     return m_private->content();
 }
 
 size_t WebSurroundingText::hitOffsetInTextContent() const
 {
@@ skipping 10 matching lines @@
 {
     return m_private->endOffsetInContent();
 }
 
 bool WebSurroundingText::isNull() const
 {
     return !m_private.get();
 }
 
 } // namespace blink