use compact namespace syntax

mostly done using
    git grep -wl namespace
    | xargs -P 8 perl -i -pe 's/namespace\s*([\w:]+)\s*\{\s*namespace\s*/namespace \1::/g'

Change-Id: Ic53dbaf443cf81fb8940155f2582a7128d829e6d
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/93406
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

vbahelper/source/msforms/service.hxx

@@ -12,7 +12,7 @@
 
 #include <sal/config.h>
 
-namespace comphelper { namespace service_decl { class ServiceDecl; } }
+namespace comphelper::service_decl { class ServiceDecl; }
 
 namespace controlprovider {
 extern comphelper::service_decl::ServiceDecl const serviceDecl;

vcl/inc/configsettings.hxx

@@ -25,7 +25,7 @@
 
 #include <unordered_map>
 
-namespace com { namespace sun { namespace star { namespace uno { template <typename > class Sequence; } } } }
+namespace com::sun::star::uno { template <typename > class Sequence; }
 
 namespace vcl
 {

vcl/inc/factory.hxx

@@ -26,13 +26,13 @@
 #include <com/sun/star/uno/Sequence.hxx>
 #include <rtl/ustring.hxx>
 
-namespace com { namespace sun { namespace star {
+namespace com::sun::star {
     namespace lang {
         class XMultiServiceFactory;
         class XSingleServiceFactory;
     }
     namespace uno { class XInterface; }
-} } }
+}
 
 css::uno::Sequence<OUString> vcl_session_getSupportedServiceNames();
 

vcl/inc/graphic/UnoGraphicDescriptor.hxx

@@ -54,7 +54,7 @@
 #define MIMETYPE_VCLGRAPHIC "image/x-vclgraphic"
 
 namespace comphelper { class PropertySetInfo; }
-namespace com { namespace sun { namespace star { namespace io { class XInputStream; } } } }
+namespace com::sun::star::io { class XInputStream; }
 
 class Graphic;
 

vcl/inc/implimagetree.hxx

@@ -33,9 +33,9 @@
 #include <i18nlangtag/languagetag.hxx>
 #include <vcl/ImageTree.hxx>
 
-namespace com { namespace sun { namespace star { namespace container {
+namespace com::sun::star::container {
     class XNameAccess;
-}}}}
+}
 
 struct ImageRequestParameters
 {

vcl/inc/unx/gtk/gtkdata.hxx

@@ -35,7 +35,7 @@
 
 #include <vector>
 
-namespace com { namespace sun { namespace star { namespace accessibility { class XAccessibleEventListener; } } } }
+namespace com::sun::star::accessibility { class XAccessibleEventListener; }
 
 class GtkSalDisplay;
 class DocumentFocusListener;

vcl/inc/unx/salinst.h

@@ -26,9 +26,9 @@
 
 #include <X11/X.h>
 
-namespace com { namespace sun { namespace star { namespace datatransfer {
+namespace com::sun::star::datatransfer {
     namespace clipboard { class XClipboard; }
-} } } }
+}
 
 class SalXLib;
 class X11SalGraphics;

vcl/inc/window.h

@@ -54,36 +54,38 @@ enum class GetFocusFlags;
 enum class ParentClipMode;
 enum class SalEvent;
 
-namespace com { namespace sun { namespace star {
+namespace com::sun::star {
 
-namespace accessibility {
-    class XAccessible;
-    class XAccessibleContext;
-    class XAccessibleEditableText;
-}
+    namespace accessibility {
+        class XAccessible;
+        class XAccessibleContext;
+        class XAccessibleEditableText;
+    }
 
-namespace rendering {
-    class XCanvas;
-}
+    namespace rendering {
+        class XCanvas;
+    }
 
-namespace awt {
-    class XWindowPeer;
-    class XWindow;
+    namespace awt {
+        class XWindowPeer;
+        class XWindow;
+    }
+    namespace uno {
+        class Any;
+        class XInterface;
+    }
+    namespace datatransfer {
+        namespace clipboard {
+            class XClipboard;
+        }
+        namespace dnd {
+            class XDropTargetListener;
+            class XDragGestureRecognizer;
+            class XDragSource;
+            class XDropTarget;
+        }
+    }
 }
-namespace uno {
-    class Any;
-    class XInterface;
-}
-namespace datatransfer { namespace clipboard {
-    class XClipboard;
-}
-
-namespace dnd {
-    class XDropTargetListener;
-    class XDragGestureRecognizer;
-    class XDragSource;
-    class XDropTarget;
-}}}}}
 
 VCL_DLLPUBLIC Size bestmaxFrameSizeForScreenSize(const Size &rScreenSize);
 

vcl/source/filter/jpeg/jpeg.h

@@ -28,9 +28,9 @@
 
 #include <jpeglib.h>
 
-namespace com { namespace sun { namespace star { namespace task {
+namespace com::sun::star::task {
     class XStatusIndicator;
-} } } }
+}
 class JPEGReader;
 class JPEGWriter;
 class Size;

vcl/unx/gtk3/a11y/atkwrapper.hxx

@@ -27,7 +27,7 @@
 
 extern "C" {
 
-namespace com { namespace sun { namespace star { namespace accessibility {
+namespace com::sun::star::accessibility {
     class XAccessibleAction;
     class XAccessibleComponent;
     class XAccessibleEditableText;
@@ -40,7 +40,7 @@ namespace com { namespace sun { namespace star { namespace accessibility {
     class XAccessibleTextMarkup;
     class XAccessibleTextAttributes;
     class XAccessibleValue;
-} } } }
+}
 
 struct AtkObjectWrapper
 {

writerfilter/source/dmapper/ConversionHelper.hxx

@@ -25,13 +25,14 @@
 #include <com/sun/star/table/BorderLine2.hpp>
 #include <com/sun/star/text/RubyAdjust.hpp>
 
-namespace com{ namespace sun{ namespace star{
+namespace com::sun::star{
     namespace lang{
         struct Locale;
     }
     namespace table{
         struct BorderLine2;
-}}}}
+    }
+}
 
 namespace writerfilter {
 namespace dmapper{

writerfilter/source/dmapper/DomainMapper.hxx

@@ -29,7 +29,7 @@
 #include <vector>
 #include <memory>
 
-namespace com{ namespace sun {namespace star{
+namespace com::sun::star{
     namespace beans{
         struct PropertyValue;
     }
@@ -45,7 +45,7 @@ namespace com{ namespace sun {namespace star{
     namespace text{
         class XTextRange;
     }
-}}}
+}
 
 namespace utl
 {

writerfilter/source/dmapper/DomainMapper_Impl.hxx

@@ -47,7 +47,7 @@
 #include "FormControlHelper.hxx"
 #include <map>
 
-namespace com{ namespace sun{ namespace star{
+namespace com::sun::star{
         namespace awt{
             struct Size;
         }
@@ -61,7 +61,7 @@ namespace com{ namespace sun{ namespace star{
                 class XFormField;
         }
         namespace beans{ class XPropertySet;}
-}}}
+}
 
 namespace writerfilter {
 namespace dmapper {

writerfilter/source/dmapper/GraphicImport.hxx

@@ -27,7 +27,7 @@
 #include <com/sun/star/beans/XPropertySet.hpp>
 #include <com/sun/star/graphic/XGraphic.hpp>
 
-namespace com { namespace sun { namespace star {
+namespace com::sun::star {
     namespace uno
     {
         class XComponentContext;
@@ -48,7 +48,7 @@ namespace com { namespace sun { namespace star {
     {
         struct PropertyValue;
     }
-}}}
+}
 
 namespace writerfilter
 {

writerfilter/source/dmapper/OLEHandler.hxx

@@ -24,7 +24,7 @@
 #include <com/sun/star/drawing/XShape.hpp>
 #include <com/sun/star/text/WrapTextMode.hpp>
 
-namespace com{ namespace sun{ namespace star{
+namespace com::sun::star{
     namespace graphic{
         class XGraphic;
     }
@@ -38,7 +38,7 @@ namespace com{ namespace sun{ namespace star{
     namespace uno {
         class XComponentContext;
     }
-}}}
+}
 namespace writerfilter {
 namespace dmapper
 {

writerfilter/source/dmapper/PropertyMap.hxx

@@ -34,7 +34,7 @@
 #include <map>
 #include <vector>
 
-namespace com { namespace sun { namespace star {
+namespace com::sun::star {
     namespace beans {
         struct PropertyValue;
     }
@@ -53,7 +53,7 @@ namespace com { namespace sun { namespace star {
         struct BorderLine2;
         struct ShadowFormat;
     }
-}}}
+}
 
 namespace writerfilter {
 namespace dmapper {

writerfilter/source/dmapper/SettingsTable.hxx

@@ -24,12 +24,10 @@
 #include <com/sun/star/text/XTextDocument.hpp>
 #include <memory>
 
-namespace com{ namespace sun{ namespace star{
-namespace lang{
-class XMultiServiceFactory;
-struct Locale;
+namespace com::sun::star::lang {
+    class XMultiServiceFactory;
+    struct Locale;
 }
-}}}
 
 namespace writerfilter {
 namespace dmapper

writerfilter/source/dmapper/StyleSheetTable.hxx

@@ -28,9 +28,7 @@
 #include "FontTable.hxx"
 #include "LoggedResources.hxx"
 
-namespace com{ namespace sun { namespace star { namespace text{
-    class XTextDocument;
-}}}}
+namespace com::sun::star::text { class XTextDocument; }
 
 
 namespace writerfilter {

writerfilter/source/dmapper/TDefTableHandler.hxx

@@ -21,14 +21,14 @@
 
 #include "LoggedResources.hxx"
 #include <vector>
-namespace com{ namespace sun{ namespace star{
+namespace com::sun::star{
     namespace table {
         struct BorderLine2;
     }
     namespace beans {
         struct PropertyValue;
     }
-}}}
+}
 
 namespace writerfilter {
 namespace dmapper