Fix miss counting on http cache transactions.

net/http/http_cache_transaction.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/http/http_cache_transaction.h"
 
 #include "build/build_config.h"
 
 #if defined(OS_POSIX)
 #include <unistd.h>
@@ skipping 714 matching lines @@
                                     result);
   cache_pending_ = false;
 
   if (!ShouldPassThrough()) {
     cache_key_ = cache_->GenerateCacheKey(request_);
 
     // Requested cache access mode.
     if (effective_load_flags_ & LOAD_ONLY_FROM_CACHE) {
       mode_ = READ;
     } else if (effective_load_flags_ & LOAD_BYPASS_CACHE) {
+      UpdateTransactionPattern(PATTERN_NOT_COVERED);

[gavinp, 2013/01/04 16:37:56]

Added bonus: this if statement now meets our coding standards.

       mode_ = WRITE;
     } else {
       mode_ = READ_WRITE;
     }
 
     // Downgrade to UPDATE if the request has been externally conditionalized.
     if (external_validation_.initialized) {
       if (mode_ & WRITE) {
         // Strip off the READ_DATA bit (and maybe add back a READ_META bit
         // in case READ was off).
@@ skipping 1799 matching lines @@
 }
 
 int HttpCache::Transaction::ResetCacheIOStart(int return_value) {
   DCHECK(cache_io_start_.is_null());
   if (return_value == ERR_IO_PENDING)
     cache_io_start_ = base::TimeTicks::Now();
   return return_value;
 }
 
 }  // namespace net