Bug 634387 - "[Mac] Firefox 4.0b12pre crash in mozilla::plugins::PPluginInstanceChild::FatalError [@ mozalloc_abort | NS_DebugBreak_P] opening a tab with Cmd-T while a Flash video has focus (youtube)" [r=smichaud, a=hardblocker]

widget/src/cocoa/nsChildView.mm

@@ -5761,17 +5761,19 @@ static const char* ToEscapedString(NSString* aString, nsCAutoString& aBuf)
   [self convertCocoaKeyEvent:theEvent toGeckoEvent:&geckoEvent];
 
   // create event for use by plugins
+  if (mIsPluginView) {
 #ifndef NP_NO_CARBON
-  EventRecord carbonEvent;
-  if (mPluginEventModel == NPEventModelCarbon) {
-    ConvertCocoaKeyEventToCarbonEvent(theEvent, carbonEvent, message);
-    geckoEvent.pluginEvent = &carbonEvent;
-  }
+    EventRecord carbonEvent;
+    if (mPluginEventModel == NPEventModelCarbon) {
+      ConvertCocoaKeyEventToCarbonEvent(theEvent, carbonEvent, message);
+      geckoEvent.pluginEvent = &carbonEvent;
+    }
 #endif
-  NPCocoaEvent cocoaEvent;
-  if (mPluginEventModel == NPEventModelCocoa) {
-    ConvertCocoaKeyEventToNPCocoaEvent(theEvent, cocoaEvent, message);
-    geckoEvent.pluginEvent = &cocoaEvent;
+    NPCocoaEvent cocoaEvent;
+    if (mPluginEventModel == NPEventModelCocoa) {
+      ConvertCocoaKeyEventToNPCocoaEvent(theEvent, cocoaEvent, message);
+      geckoEvent.pluginEvent = &cocoaEvent;
+    }
   }
 
   mGeckoChild->DispatchWindowEvent(geckoEvent);