mshtml: Added IHTMLCSSStyleDeclaration stub implementation.

dlls/mshtml/htmlstyle.h

@@ -24,6 +24,7 @@ struct HTMLStyle {
     IHTMLStyle4 IHTMLStyle4_iface;
     IHTMLStyle5 IHTMLStyle5_iface;
     IHTMLStyle6 IHTMLStyle6_iface;
+    IHTMLCSSStyleDeclaration IHTMLCSSStyleDeclaration_iface;
 
     LONG ref;
 

dlls/mshtml/mshtml_private.h

@@ -147,6 +147,7 @@ typedef struct EventTarget EventTarget;
     XIID(IHTMLBodyElement) \
     XIID(IHTMLBodyElement2) \
     XIID(IHTMLButtonElement) \
+    XIID(IHTMLCSSStyleDeclaration) \
     XIID(IHTMLCommentElement) \
     XIID(IHTMLCurrentStyle) \
     XIID(IHTMLCurrentStyle2) \

dlls/mshtml/tests/style.c

@@ -738,6 +738,7 @@ static void test_style6(IHTMLStyle6 *style)
 
 static void test_body_style(IHTMLStyle *style)
 {
+    IHTMLCSSStyleDeclaration *css_style;
     IHTMLStyle2 *style2;
     IHTMLStyle3 *style3;
     IHTMLStyle4 *style4;
@@ -753,6 +754,10 @@ static void test_body_style(IHTMLStyle *style)
     LONG l;
     VARIANT vDefault;
 
+    hres = IHTMLStyle_QueryInterface(style, &IID_IHTMLCSSStyleDeclaration, (void**)&css_style);
+    ok(hres == S_OK || broken(!is_ie9plus && hres == E_NOINTERFACE),
+       "Could not get IHTMLCSSStyleDeclaration interface: %08x\n", hres);
+
     test_style_csstext(style, NULL);
 
     hres = IHTMLStyle_get_position(style, &str);
@@ -2703,6 +2708,9 @@ static void test_body_style(IHTMLStyle *style)
     }else {
         win_skip("IHTMLStyle6 not available\n");
     }
+
+    if(css_style)
+        IHTMLCSSStyleDeclaration_Release(css_style);
 }
 
 #define test_style_filter(a,b) _test_style_filter(__LINE__,a,b)