Bug 804606 - Stop Flash from crashing in CoreGraphics mode on accessing "our" CGContextRef outside of the call we use to pass it. r=bgirard

dom/plugins/ipc/PluginModuleChild.h

@@ -287,6 +287,11 @@ public:
         // Mac: Allow the plugin to use offline renderer mode.
         // Use this only if the plugin is certified the support the offline renderer.
         QUIRK_ALLOW_OFFLINE_RENDERER                    = 1 << 9,
+        // Mac: Work around a Flash bug that can cause plugin process crashes
+        // in CoreGraphics mode:  The Flash plugin sometimes accesses the
+        // CGContextRef we pass to it in NPP_HandleEvent(NPCocoaEventDrawRect)
+        // outside of that call.  See bug 804606.
+        QUIRK_FLASH_AVOID_CGMODE_CRASHES                = 1 << 10,
     };
 
     int GetQuirks() { return mQuirks; }