Refactor RST_STREAM status code handling.

net/spdy/spdy_frame_builder.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/spdy/spdy_frame_builder.h"
 
 #include <limits>
 
 #include "base/logging.h"
 #include "net/spdy/spdy_framer.h"
@@ skipping 140 matching lines @@
 }
 
 bool SpdyFrameBuilder::RewriteLength(const SpdyFramer& framer) {
   return OverwriteLength(framer,
                          length_ - framer.GetControlFrameHeaderSize());
 }
 
 bool SpdyFrameBuilder::OverwriteLength(const SpdyFramer& framer,
                                        size_t length) {
   if (framer.protocol_version() < 4) {
-    DCHECK_GT(framer.GetFrameMaximumSize() - framer.GetFrameMinimumSize(),
+    DCHECK_GE(framer.GetFrameMaximumSize() - framer.GetFrameMinimumSize(),
               length);
   } else {
     DCHECK_GE(framer.GetFrameMaximumSize(), length);
   }
   bool success = false;
   const size_t old_length = length_;
 
   if (framer.protocol_version() < 4) {
     FlagsAndLength flags_length = CreateFlagsAndLength(
         0,  // We're not writing over the flags value anyway.
@@ skipping 32 matching lines @@
 
   if (length_ + length > capacity_) {
     DCHECK(false);
     return false;
   }
 
   return true;
 }
 
 }  // namespace net