chart2: ExplicitValueProvider - make forward declrs. consistent

Change-Id: I90e8b2d163f700c7b1e251064af8655529f76906
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/133126
Tested-by: Jenkins
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>

chart2/inc/ChartView.hxx

@@ -24,6 +24,7 @@
 
 #include <svl/lstner.hxx>
 #include <com/sun/star/awt/Size.hpp>
+#include <com/sun/star/awt/Rectangle.hpp>
 #include <com/sun/star/beans/XPropertySet.hpp>
 #include <com/sun/star/datatransfer/XTransferable.hpp>
 #include <com/sun/star/lang/XInitialization.hpp>

chart2/source/inc/chartview/ExplicitValueProvider.hxx

@@ -18,15 +18,12 @@
  */
 #pragma once
 
-#include <com/sun/star/awt/Rectangle.hpp>
 #include <chartview/chartviewdllapi.hxx>
 #include <rtl/ref.hxx>
+#include <rtl/ustring.hxx>
 
 #include <memory>
 
-namespace chart { class ChartModel; }
-namespace chart { struct ExplicitIncrementData; }
-namespace chart { struct ExplicitScaleData; }
 namespace com::sun::star::beans { class XPropertySet; }
 namespace com::sun::star::chart2 { class XAxis; }
 namespace com::sun::star::chart2 { class XChartDocument; }
@@ -38,12 +35,17 @@ namespace com::sun::star::uno { class XInterface; }
 namespace com::sun::star::uno { template <typename > class Reference; }
 namespace com::sun::star::uno { template <typename > class Sequence; }
 namespace com::sun::star::util { class XNumberFormatsSupplier; }
+namespace com::sun::star::awt { struct Rectangle; }
 class SvxShape;
 
 namespace chart
 {
+
 class BaseCoordinateSystem;
 class DrawModelWrapper;
+class ChartModel;
+struct ExplicitIncrementData;
+struct ExplicitScaleData;
 
 class OOO_DLLPUBLIC_CHARTVIEW ExplicitValueProvider
 {
@@ -91,7 +93,7 @@ public:
             , const css::uno::Reference< css::util::XNumberFormatsSupplier >& xNumberFormatsSupplier );
 
 protected:
-    ~ExplicitValueProvider() {}
+    ~ExplicitValueProvider() = default;
 };
 
 } //namespace chart

chart2/source/view/main/ChartView.cxx

@@ -76,7 +76,6 @@
 
 #include <time.h>
 
-#include <com/sun/star/awt/Size.hpp>
 #include <com/sun/star/awt/Point.hpp>
 #include <com/sun/star/chart/ChartAxisPosition.hpp>
 #include <com/sun/star/chart/TimeUnit.hpp>