mshtml: Use proper helpers to implement IHTMLSyle::fontSize property.

dlls/mshtml/htmlstyle.c

@@ -853,14 +853,7 @@ static HRESULT WINAPI HTMLStyle_put_fontSize(IHTMLStyle *iface, VARIANT v)
 
     TRACE("(%p)->(%s)\n", This, debugstr_variant(&v));
 
-    switch(V_VT(&v)) {
-    case VT_BSTR:
-        return set_style_attr(This, STYLEID_FONT_SIZE, V_BSTR(&v), 0);
-    default:
-        FIXME("not supported vt %d\n", V_VT(&v));
-    }
-
-    return S_OK;
+    return set_nsstyle_attr_var(This->nsstyle, STYLEID_FONT_SIZE, &v, ATTR_FIX_PX);
 }
 
 static HRESULT WINAPI HTMLStyle_get_fontSize(IHTMLStyle *iface, VARIANT *p)
@@ -869,8 +862,7 @@ static HRESULT WINAPI HTMLStyle_get_fontSize(IHTMLStyle *iface, VARIANT *p)
 
     TRACE("(%p)->(%p)\n", This, p);
 
-    V_VT(p) = VT_BSTR;
-    return get_style_attr(This, STYLEID_FONT_SIZE, &V_BSTR(p));
+    return get_nsstyle_attr_var(This->nsstyle, STYLEID_FONT_SIZE, p, 0);
 }
 
 static HRESULT WINAPI HTMLStyle_put_font(IHTMLStyle *iface, BSTR v)

dlls/mshtml/tests/style.c

@@ -555,6 +555,17 @@ static void test_body_style(IHTMLStyle *style)
     ok(V_VT(&v) == VT_BSTR, "V_VT(fontSize) = %d\n", V_VT(&v));
     ok(!V_BSTR(&v), "V_BSTR(fontSize) = %s\n", wine_dbgstr_w(V_BSTR(&v)));
 
+    V_VT(&v) = VT_I4;
+    V_I4(&v) = 12;
+    hres = IHTMLStyle_put_fontSize(style, v);
+    ok(hres == S_OK, "put_fontSize failed: %08x\n", hres);
+
+    V_VT(&v) = VT_NULL;
+    hres = IHTMLStyle_get_fontSize(style, &v);
+    ok(hres == S_OK, "get_fontSize failed: %08x\n", hres);
+    ok(V_VT(&v) == VT_BSTR, "V_VT(fontSize) = %d\n", V_VT(&v));
+    ok(!strcmp_wa(V_BSTR(&v), "12px"), "V_BSTR(fontSize) = %s\n", wine_dbgstr_w(V_BSTR(&v)));
+
     V_VT(&v) = VT_NULL;
     hres = IHTMLStyle_get_color(style, &v);
     ok(hres == S_OK, "get_color failed: %08x\n", hres);