Fixed touch selection handle manipulation when pinched in.

Source/web/WebLocalFrameImpl.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 82 matching lines @@
 #include "core/editing/FrameSelection.h"
 #include "core/editing/InputMethodController.h"
 #include "core/editing/PlainTextRange.h"
 #include "core/editing/SpellChecker.h"
 #include "core/editing/TextAffinity.h"
 #include "core/editing/TextIterator.h"
 #include "core/editing/htmlediting.h"
 #include "core/editing/markup.h"
 #include "core/frame/Console.h"
 #include "core/frame/DOMWindow.h"
+#include "core/frame/FrameHost.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/Settings.h"
 #include "core/html/HTMLCollection.h"
 #include "core/html/HTMLFormElement.h"
 #include "core/html/HTMLFrameElementBase.h"
 #include "core/html/HTMLFrameOwnerElement.h"
 #include "core/html/HTMLHeadElement.h"
 #include "core/html/HTMLInputElement.h"
 #include "core/html/HTMLLinkElement.h"
 #include "core/html/PluginDocument.h"
@@ skipping 1186 matching lines @@
     frame()->document()->head()->appendChild(styleElement.release(), IGNORE_EXCEPTION);
 }
 
 void WebLocalFrameImpl::setCaretVisible(bool visible)
 {
     frame()->selection().setCaretVisible(visible);
 }
 
 VisiblePosition WebLocalFrameImpl::visiblePositionForWindowPoint(const WebPoint& point)
 {
+    // FIXME(bokan): crbug.com/371902 - These scale/pinch transforms shouldn't
+    // be ad hoc and explicit.
+    PinchViewport& pinchViewport = frame()->page()->frameHost().pinchViewport();
     FloatPoint unscaledPoint(point);
     unscaledPoint.scale(1 / view()->pageScaleFactor(), 1 / view()->pageScaleFactor());
+    unscaledPoint.moveBy(pinchViewport.visibleRect().location());
 
     HitTestRequest request = HitTestRequest::Move | HitTestRequest::ReadOnly | HitTestRequest::Active | HitTestRequest::IgnoreClipping | HitTestRequest::ConfusingAndOftenMisusedDisallowShadowContent;
     HitTestResult result(frame()->view()->windowToContents(roundedIntPoint(unscaledPoint)));
     frame()->document()->renderView()->layer()->hitTest(request, result);
 
     if (Node* node = result.targetNode())
         return frame()->selection().selection().visiblePositionRespectingEditingBoundary(result.localPoint(), node);
     return VisiblePosition();
 }
 
@@ skipping 594 matching lines @@
 
 void WebLocalFrameImpl::invalidateAll() const
 {
     ASSERT(frame() && frame()->view());
     FrameView* view = frame()->view();
     view->invalidateRect(view->frameRect());
     invalidateScrollbar();
 }
 
 } // namespace blink