1 files changed, 11 insertions, 7 deletions
diff --git a/WebCore/bindings/js/JSHTMLCanvasElementCustom.cpp b/WebCore/bindings/js/JSHTMLCanvasElementCustom.cpp
index a69696a..ae9115e 100644
--- a/WebCore/bindings/js/JSHTMLCanvasElementCustom.cpp
+++ b/WebCore/bindings/js/JSHTMLCanvasElementCustom.cpp
@@ -88,17 +88,21 @@ JSValue JSHTMLCanvasElement::getContext(ExecState* exec)
 JSValue JSHTMLCanvasElement::toDataURL(ExecState* exec)
 {
     const String& type = valueToStringWithUndefinedOrNullCheck(exec, exec->argument(0));
-    double quality = 1.0;
+    HTMLCanvasElement* canvas = static_cast<HTMLCanvasElement*>(impl());
+    ExceptionCode ec = 0;
+    
+    JSC::JSValue result;
+    double quality;
+    double* qualityPtr = 0;
     if (exec->argumentCount() > 1) {
         JSValue v = exec->argument(1);
-        if (v.isNumber())
+        if (v.isNumber()) {
             quality = v.toNumber(exec);
-        if (!(0.0 <= quality && quality <= 1.0))
-            quality = 1.0;
+            qualityPtr = &quality;
+        }
     }
-    HTMLCanvasElement* canvas = static_cast<HTMLCanvasElement*>(impl());
-    ExceptionCode ec = 0;
-    JSC::JSValue result = jsString(exec, canvas->toDataURL(type, quality, ec));
+    
+    result = jsString(exec, canvas->toDataURL(type, qualityPtr, ec));
     setDOMException(exec, ec);
     return result;
 }