Remove proxy checking while evaluating via headers.

chrome/renderer/page_load_histograms.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 "chrome/renderer/page_load_histograms.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 124 matching lines @@
 // dump page load histograms. Otherwise returns NULL.
 URLPattern::SchemeMasks GetSupportedSchemeType(const GURL& url) {
   if (url.SchemeIs("http"))
     return URLPattern::SCHEME_HTTP;
   else if (url.SchemeIs("https"))
     return URLPattern::SCHEME_HTTPS;
   return static_cast<URLPattern::SchemeMasks>(0);
 }
 
 // Helper function to check for string in 'via' header. Returns true if
-// |via_value| is one of the values listed in the Via header and the response
-// was fetched via a proxy.
+// |via_value| is one of the values listed in the Via header.
 bool ViaHeaderContains(WebFrame* frame, const std::string& via_value) {
   const char kViaHeaderName[] = "Via";
-
-  DocumentState* document_state =
-      DocumentState::FromDataSource(frame->dataSource());
-  if (!document_state->was_fetched_via_proxy())
-    return false;
-
   std::vector<std::string> values;
   // Multiple via headers have already been coalesced and hence each value
   // separated by a comma corresponds to a proxy. The value added by a proxy is
   // not expected to contain any commas.
   // Example., Via: 1.0 Compression proxy, 1.1 Google Instant Proxy Preview
   base::SplitString(
       frame->dataSource()->response().httpHeaderField(kViaHeaderName).utf8(),
       ',', &values);
   return std::find(values.begin(), values.end(), via_value) != values.end();
 }
@@ skipping 676 matching lines @@
 
   DCHECK(document_state);
   DCHECK(ds);
   GURL url(ds->request().url());
   Time start = document_state->start_load_time();
   Time finish = document_state->finish_load_time();
   // TODO(mbelshe): should we log more stats?
   VLOG(1) << "PLT: " << (finish - start).InMilliseconds() << "ms "
           << url.spec();
 }