mshtml: Add IHTMLCSSStyleDeclaration2 stub implementation.

dlls/mshtml/htmlstyle.h

@@ -25,6 +25,7 @@ struct HTMLStyle {
     IHTMLStyle5 IHTMLStyle5_iface;
     IHTMLStyle6 IHTMLStyle6_iface;
     IHTMLCSSStyleDeclaration IHTMLCSSStyleDeclaration_iface;
+    IHTMLCSSStyleDeclaration2 IHTMLCSSStyleDeclaration2_iface;
 
     LONG ref;
 

dlls/mshtml/mshtml_private.h

@@ -148,6 +148,7 @@ typedef struct EventTarget EventTarget;
     XIID(IHTMLBodyElement2) \
     XIID(IHTMLButtonElement) \
     XIID(IHTMLCSSStyleDeclaration) \
+    XIID(IHTMLCSSStyleDeclaration2) \
     XIID(IHTMLCommentElement) \
     XIID(IHTMLCurrentStyle) \
     XIID(IHTMLCurrentStyle2) \

dlls/mshtml/tests/style.c

@@ -806,6 +806,7 @@ static void test_css_style_declaration(IHTMLCSSStyleDeclaration *css_style)
 static void test_body_style(IHTMLStyle *style)
 {
     IHTMLCSSStyleDeclaration *css_style;
+    IHTMLCSSStyleDeclaration2 *css_style2 = NULL;
     IHTMLStyle2 *style2;
     IHTMLStyle3 *style3;
     IHTMLStyle4 *style4;
@@ -825,6 +826,12 @@ static void test_body_style(IHTMLStyle *style)
     ok(hres == S_OK || broken(!is_ie9plus && hres == E_NOINTERFACE),
        "Could not get IHTMLCSSStyleDeclaration interface: %08x\n", hres);
 
+    if(css_style) {
+        hres = IHTMLStyle_QueryInterface(style, &IID_IHTMLCSSStyleDeclaration2, (void**)&css_style2);
+        ok(hres == S_OK || broken(hres == E_NOINTERFACE),
+           "Could not get IHTMLCSSStyleDeclaration2 interface: %08x\n", hres);
+    }
+
     test_style_csstext(style, NULL);
 
     hres = IHTMLStyle_get_position(style, &str);
@@ -2895,6 +2902,8 @@ static void test_body_style(IHTMLStyle *style)
     if(compat_mode >= COMPAT_IE9)
         test_css_style_declaration(css_style);
 
+    if(css_style2)
+        IHTMLCSSStyleDeclaration2_Release(css_style2);
     if(css_style)
         IHTMLCSSStyleDeclaration_Release(css_style);
 }