Linux: More gcc 4.5 NULL versus 0 fixes.

net/spdy/spdy_session.cc

 // Copyright (c) 2010 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_session.h"
 
 #include "base/basictypes.h"
 #include "base/linked_ptr.h"
 #include "base/logging.h"
 #include "base/message_loop.h"
@@ skipping 345 matching lines @@
   }
 
   const std::string& path = url.PathForRequest();
 
   *stream = GetActivePushStream(path);
   if (stream->get()) {
     DCHECK(streams_pushed_and_claimed_count_ < streams_pushed_count_);
     streams_pushed_and_claimed_count_++;
     return OK;
   }
-  return NULL;
+  return 0;
 }
 
 int SpdySession::CreateStream(
     const GURL& url,
     RequestPriority priority,
     scoped_refptr<SpdyStream>* spdy_stream,
     const BoundNetLog& stream_net_log,
     CompletionCallback* callback) {
   if (!max_concurrent_streams_ ||
       active_streams_.size() < max_concurrent_streams_) {
@@ skipping 1009 matching lines @@
           UMA_HISTOGRAM_CUSTOM_COUNTS("Net.SpdySettingsRetransRate",
                                       setting.second,
                                       1, 100, 50);
           break;
       }
     }
   }
 }
 
 }  // namespace net