Bug 535036 - '[OOPP] Flash hangs Firefox with IPC enabled when video is paused and process loses focus'. r=masayuki+jst, sr=jst.

layout/generic/nsObjectFrame.cpp

@@ -403,7 +403,8 @@ public:
   PRBool SendNativeEvents()
   {
 #ifdef XP_WIN
-    return MatchPluginName("Shockwave Flash");
+    return mPluginWindow->type == NPWindowTypeDrawable &&
+           MatchPluginName("Shockwave Flash");
 #elif defined(MOZ_X11)
     return PR_TRUE;
 #else