Devtools[LayoutEditor]: Pass data about property change from InspectorOverlayPage

Source/core/inspector/InspectorOverlayHost.h

Index: Source/core/inspector/InspectorOverlayHost.h
diff --git a/Source/core/inspector/InspectorOverlayHost.h b/Source/core/inspector/InspectorOverlayHost.h
index 58c61b4beef28164d3fa5fc6365e2f88e3198b9e..7059ef55adae55d4e857db11e7a30485e2b9e2fc 100644
--- a/Source/core/inspector/InspectorOverlayHost.h
+++ b/Source/core/inspector/InspectorOverlayHost.h
@@ -48,6 +48,9 @@ public:
 
     void resume();
     void stepOver();
+    void startPropertyChange(const String&);
+    void changeProperty(float delta);
+    void endPropertyChange();
 
     class Listener : public WillBeGarbageCollectedMixin {

[dgozman, 2015/06/25 10:10:38]

Let's rename to DebuggerListener.

[sergeyv, 2015/06/25 12:19:16]

Done.

     public:
@@ -57,10 +60,21 @@ public:
     };
     void setListener(Listener* listener) { m_listener = listener; }
 
+    class LayoutEditorListener : public WillBeGarbageCollectedMixin {
+    public:
+        virtual ~LayoutEditorListener() { }
+        virtual void overlayStartedPropertyChange(const String&) = 0;
+        virtual void overlayPropertyChanged(float delta) = 0;

[dgozman, 2015/06/25 10:10:38]

cssDelta

[sergeyv, 2015/06/25 12:19:16]

Done.

+        virtual void overlayEndedPropertyChange() = 0;
+    };
+    void setLayoutEditorListener(LayoutEditorListener* listener) { m_layoutEditorListener = listener; }
+
 private:
     InspectorOverlayHost();
 
     RawPtrWillBeMember<Listener> m_listener;
+    RawPtrWillBeMember<LayoutEditorListener> m_layoutEditorListener;
+
 };
 
 } // namespace blink