Added a bit to speed up frame destruction

layout/base/public/nsIFrame.h

@@ -118,6 +118,11 @@ typedef PRUint32 nsFrameState;
 // If this bit is set, then the frame corresponds to generated content
 #define NS_FRAME_GENERATED_CONTENT 0x00000040
 
+// If this bit is set, then the frame has requested one or more image
+// loads via the nsIPresContext.StartLoadImage API at some time during
+// its lifetime.
+#define NS_FRAME_HAS_LOADED_IMAGES 0x00000080
+
 // The low 16 bits of the frame state word are reserved by this API.
 #define NS_FRAME_RESERVED 0x0000FFFF
 

layout/generic/nsIFrame.h

@@ -118,6 +118,11 @@ typedef PRUint32 nsFrameState;
 // If this bit is set, then the frame corresponds to generated content
 #define NS_FRAME_GENERATED_CONTENT 0x00000040
 
+// If this bit is set, then the frame has requested one or more image
+// loads via the nsIPresContext.StartLoadImage API at some time during
+// its lifetime.
+#define NS_FRAME_HAS_LOADED_IMAGES 0x00000080
+
 // The low 16 bits of the frame state word are reserved by this API.
 #define NS_FRAME_RESERVED 0x0000FFFF