bug 230931 - nsFileStreams.h should not #include nsReadLine.h

this forward-declares nsLineBuffer in nsFileStreams.h instead, and turns a
typedef struct { ... } nsLineBuffer into struct nsLineBuffer { ... }
r=bzbarsky sr=darin

netwerk/base/public/nsReadLine.h

@@ -35,13 +35,13 @@
 
 #define kLineBufferSize 1024
 
-typedef struct {
+struct nsLineBuffer {
   char buf[kLineBufferSize+1];
   char* start;
   char* current;
   char* end;
   PRBool empty;
-} nsLineBuffer;
+};
 
 static nsresult
 NS_InitLineBuffer (nsLineBuffer ** aBufferPtr) {

netwerk/base/src/nsFileStreams.h

@@ -45,10 +45,11 @@
 #include "nsISeekableStream.h"
 #include "nsILineInputStream.h"
 #include "nsCOMPtr.h"
-#include "nsReadLine.h"
 #include "prlog.h"
 #include "prio.h"
 
+struct nsLineBuffer;
+
 ////////////////////////////////////////////////////////////////////////////////
 
 class nsFileStream : public nsISeekableStream