Remove WebFrame::findChildByExpression.

Source/web/WebFrameImpl.cpp

 /*
  * Copyright (C) 2009 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 144 matching lines @@
 #include "core/frame/Settings.h"
 #include "core/rendering/HitTestResult.h"
 #include "core/rendering/RenderBox.h"
 #include "core/rendering/RenderFrame.h"
 #include "core/rendering/RenderLayer.h"
 #include "core/rendering/RenderObject.h"
 #include "core/rendering/RenderTreeAsText.h"
 #include "core/rendering/RenderView.h"
 #include "core/rendering/style/StyleInheritedData.h"
 #include "core/timing/Performance.h"
-#include "core/xml/DocumentXPathEvaluator.h"
-#include "core/xml/XPathResult.h"
 #include "platform/TraceEvent.h"
 #include "platform/UserGestureIndicator.h"
 #include "platform/clipboard/ClipboardUtilities.h"
 #include "platform/fonts/FontCache.h"
 #include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/GraphicsLayerClient.h"
 #include "platform/graphics/skia/SkiaUtils.h"
 #include "platform/network/ResourceRequest.h"
 #include "platform/scroll/ScrollbarTheme.h"
 #include "platform/scroll/ScrollTypes.h"
@@ skipping 529 matching lines @@
     return fromFrame(frame()->tree().traverseNextWithWrap(wrap));
 }
 
 WebFrame* WebFrameImpl::findChildByName(const WebString& name) const
 {
     if (!frame())
         return 0;
     return fromFrame(frame()->tree().child(name));
 }
 
-WebFrame* WebFrameImpl::findChildByExpression(const WebString& xpath) const
-{
-    if (xpath.isEmpty())
-        return 0;
-
-    Document* document = frame()->document();
-    ASSERT(document);
-
-    RefPtrWillBeRawPtr<XPathResult> xpathResult = DocumentXPathEvaluator::evaluate(*document, xpath, document, nullptr, XPathResult::ORDERED_NODE_ITERATOR_TYPE, 0, IGNORE_EXCEPTION);
-    if (!xpathResult)
-        return 0;
-
-    Node* node = xpathResult->iterateNext(IGNORE_EXCEPTION);
-    if (!node || !node->isFrameOwnerElement())
-        return 0;
-    return fromFrame(toLocalFrame(toHTMLFrameOwnerElement(node)->contentFrame()));
-}
-
 WebDocument WebFrameImpl::document() const
 {
     if (!frame() || !frame()->document())
         return WebDocument();
     return WebDocument(frame()->document());
 }
 
 WebPerformance WebFrameImpl::performance() const
 {
     if (!frame())
@@ skipping 1233 matching lines @@
 
 void WebFrameImpl::invalidateAll() const
 {
     ASSERT(frame() && frame()->view());
     FrameView* view = frame()->view();
     view->invalidateRect(view->frameRect());
     invalidateScrollbar();
 }
 
 } // namespace blink