Oilpan: Change Persistent<> data members to Member<> in HitTestResult.

Source/web/mac/WebSubstringUtil.mm

 /*
  * Copyright (C) 2005, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2011 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.
@@ skipping 37 matching lines @@
 #include "core/rendering/HitTestResult.h"
 #include "core/rendering/RenderObject.h"
 #include "core/rendering/style/RenderStyle.h"
 #include "platform/fonts/Font.h"
 #include "platform/mac/ColorMac.h"
 #include "public/platform/WebRect.h"
 #include "public/web/WebHitTestResult.h"
 #include "public/web/WebRange.h"
 #include "public/web/WebView.h"
 #include "web/WebLocalFrameImpl.h"
+#include "web/WebViewImpl.h"
 
 using namespace WebCore;
 
 static NSAttributedString* attributedSubstringFromRange(const Range* range)
 {
     NSMutableAttributedString* string = [[NSMutableAttributedString alloc] init];
     NSMutableDictionary* attrs = [NSMutableDictionary dictionary];
     size_t length = range->endOffset() - range->startOffset();
 
     unsigned position = 0;
@@ skipping 37 matching lines @@
         [string setAttributes:attrs range:NSMakeRange(position, numCharacters)];
         position += numCharacters;
     }
     return [string autorelease];
 }
 
 namespace blink {
 
 NSAttributedString* WebSubstringUtil::attributedWordAtPoint(WebView* view, WebPoint point, WebPoint& baselinePoint)
 {
-    HitTestResult result = view->hitTestResultAt(point);
+    HitTestResult result = static_cast<WebViewImpl*>(view)->coreHitTestResultAt(point);
     if (!result.targetNode())
       return nil;
     LocalFrame* frame = result.targetNode()->document().frame();
     FrameView* frameView = frame->view();
 
     RefPtrWillBeRawPtr<Range> range = frame->rangeForPoint(result.roundedPointInInnerNodeFrame());
     if (!range)
         return nil;
 
     // Expand to word under point.
@@ skipping 30 matching lines @@
     Element* editable = frame->selection().rootEditableElementOrDocumentElement();
     ASSERT(editable);
     RefPtrWillBeRawPtr<Range> range(PlainTextRange(location, location + length).createRange(*editable));
     if (!range)
         return nil;
 
     return attributedSubstringFromRange(range.get());
 }
 
 } // namespace blink