Rework compositor touch hit testing

Source/core/testing/Internals.h

 /*
  * 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 13 matching lines @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef Internals_h
 #define Internals_h
 
 #include "core/css/CSSComputedStyleDeclaration.h"
 #include "core/dom/ContextLifecycleObserver.h"
 #include "core/dom/ExceptionCodePlaceholder.h"
 #include "core/dom/NodeList.h"
+#include "core/page/scrolling/ScrollingCoordinator.h"
+#include "core/rendering/RenderObject.h"
 #include <wtf/ArrayBuffer.h>
 #include <wtf/PassRefPtr.h>
 #include <wtf/RefCounted.h>
 #include <wtf/text/WTFString.h>
 
 namespace WebCore {
 
 class ClientRect;
 class ClientRectList;
 class DOMPoint;
 class DOMStringList;
 class DOMWindow;
 class Document;
 class DocumentMarker;
 class Element;
 class Frame;
 class InspectorFrontendChannelDummy;
 class InternalRuntimeFlags;
 class InternalProfilers;
 class InternalSettings;
+class LayerRectList;
 class Node;
 class Page;
 class PagePopupController;
 class Range;
 class ScriptExecutionContext;
 class ShadowRoot;
 class MallocStatistics;
 class SerializedScriptValue;
 class TypeConversions;
 
 typedef int ExceptionCode;
 
-class Internals : public RefCounted<Internals>, public ContextLifecycleObserver {
+class Internals : public RefCounted<Internals>
+    , public ContextLifecycleObserver
+    , public ScrollingCoordinator::TouchEventTargetRectsObserver {
 public:
     static PassRefPtr<Internals> create(Document*);
     virtual ~Internals();
 
     static void resetToConsistentState(Page*);
 
     String elementRenderTreeAsText(Element*, ExceptionCode&);
 
     String address(Node*);
 
@@ skipping 91 matching lines @@
     PassRefPtr<ClientRect> bestZoomableAreaForTouchPoint(long x, long y, long width, long height, Document*, ExceptionCode&);
 
     int lastSpellCheckRequestSequence(Document*, ExceptionCode&);
     int lastSpellCheckProcessedSequence(Document*, ExceptionCode&);
 
     Vector<String> userPreferredLanguages() const;
     void setUserPreferredLanguages(const Vector<String>&);
 
     unsigned wheelEventHandlerCount(Document*, ExceptionCode&);
     unsigned touchEventHandlerCount(Document*, ExceptionCode&);
-    PassRefPtr<ClientRectList> touchEventTargetClientRects(Document*, ExceptionCode&);
+    PassRefPtr<LayerRectList> touchEventTargetLayerRects(Document*, ExceptionCode&);
+    unsigned touchEventTargetLayerRectsUpdateCount(Document*, ExceptionCode&);
+    virtual void touchEventTargetRectsChanged(const LayerHitTestRects&);
 
     // This is used to test rect based hit testing like what's done on touch screens.
     PassRefPtr<NodeList> nodesFromRect(Document*, int x, int y, unsigned topPadding, unsigned rightPadding,
         unsigned bottomPadding, unsigned leftPadding, bool ignoreClipping, bool allowShadowContent, bool allowChildFrameContent, ExceptionCode&) const;
 
     void emitInspectorDidBeginFrame();
     void emitInspectorDidCancelFrame();
 
     bool hasSpellingMarker(Document*, int from, int length, ExceptionCode&);
     bool hasGrammarMarker(Document*, int from, int length, ExceptionCode&);
@@ skipping 98 matching lines @@
 private:
     explicit Internals(Document*);
     Document* contextDocument() const;
     Frame* frame() const;
     Vector<String> iconURLs(Document*, int iconTypesMask) const;
 
     DocumentMarker* markerAt(Node*, const String& markerType, unsigned index, ExceptionCode&);
     RefPtr<DOMWindow> m_frontendWindow;
     OwnPtr<InspectorFrontendChannelDummy> m_frontendChannel;
     RefPtr<InternalRuntimeFlags> m_runtimeFlags;
+    RefPtr<ScrollingCoordinator> m_scrollingCoordinator;
+    int m_touchEventTargetRectUpdateCount;
+    LayerHitTestRects m_currentTouchEventRects;
     RefPtr<InternalProfilers> m_profilers;
 };
 
 } // namespace WebCore
 
 #endif