Remove few pointless OUString::number() and one method

Change-Id: I3e9a302a7513eebfeff07402f71fc3dde22e4cc2

include/sax/fshelper.hxx

@@ -124,7 +124,6 @@ public:
 
     FastSerializerHelper* write(const char* value);
     FastSerializerHelper* write(const OUString& value);
-    FastSerializerHelper* write(const OString& value);
     FastSerializerHelper* write(sal_Int32 value);
     FastSerializerHelper* write(sal_Int64 value);
     FastSerializerHelper* write(double value);

oox/source/core/xmlfilterbase.cxx

@@ -524,7 +524,7 @@ static void
 writeElement( FSHelperPtr pDoc, sal_Int32 nXmlElement, const sal_Int32 nValue )
 {
     pDoc->startElement( nXmlElement, FSEND );
-    pDoc->write( OUString::number( nValue ) );
+    pDoc->write( nValue );
     pDoc->endElement( nXmlElement );
 }
 
@@ -677,7 +677,7 @@ writeAppProperties( XmlFilterBase& rSelf, Reference< XDocumentProperties > xProp
     {
             sal_Int32 nValue = 0;
             if (it->second >>= nValue)
-                writeElement(pAppProps, XML_Paragraphs, OUString::number(nValue));
+                writeElement(pAppProps, XML_Paragraphs, nValue);
     }
 
     uno::Reference<beans::XPropertyAccess> xUserDefinedProperties(xProperties->getUserDefinedProperties(), uno::UNO_QUERY);
@@ -719,10 +719,9 @@ writeCustomProperties( XmlFilterBase& rSelf, Reference< XDocumentProperties > xP
 
             OString aName = OUStringToOString( aprop[n].Name, RTL_TEXTENCODING_ASCII_US );
             // pid starts from 2 not from 1 as MS supports pid from 2
-            OString pid =  OUStringToOString( OUString::number(n + 2), RTL_TEXTENCODING_ASCII_US );
             pAppProps->startElement( XML_property ,
                 XML_fmtid,  "{D5CDD505-2E9C-101B-9397-08002B2CF9AE}",
-                XML_pid,    pid,
+                XML_pid,    OString::number(n + 2),
                 XML_name,   aName,
                 FSEND);
 

sax/source/tools/fshelper.cxx

@@ -112,25 +112,22 @@ FastSerializerHelper* FastSerializerHelper::write(const OUString& value)
     return this;
 }
 
-FastSerializerHelper* FastSerializerHelper::write(const OString& value)
-{
-    mpSerializer->write(value);
-    return this;
-}
-
 FastSerializerHelper* FastSerializerHelper::write(sal_Int32 value)
 {
-    return write(OString::number(value));
+    mpSerializer->write(OString::number(value));
+    return this;
 }
 
 FastSerializerHelper* FastSerializerHelper::write(sal_Int64 value)
 {
-    return write(OString::number(value));
+    mpSerializer->write(OString::number(value));
+    return this;
 }
 
 FastSerializerHelper* FastSerializerHelper::write(double value)
 {
-    return write(OString::number(value));
+    mpSerializer->write(OString::number(value));
+    return this;
 }
 
 FastSerializerHelper* FastSerializerHelper::writeEscaped(const char* value)