Upstreaming SpdyProxy-related switches, OTR logic, and histograms

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 "base/command_line.h"
 #include "base/logging.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
 #include "base/time.h"
+#include "chrome/common/chrome_switches.h"
 #include "chrome/common/extensions/url_pattern.h"
 #include "chrome/renderer/chrome_content_renderer_client.h"
 #include "chrome/renderer/prerender/prerender_helper.h"
 #include "content/public/common/content_constants.h"
 #include "content/public/renderer/document_state.h"
 #include "content/public/renderer/render_thread.h"
 #include "content/public/renderer/render_view.h"
 #include "googleurl/src/gurl.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDocument.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
@@ skipping 323 matching lines @@
       case DocumentState::LINK_LOAD_CACHE_STALE_OK:
         PLT_HISTOGRAM(base::FieldTrial::MakeName(
             "PLT.BeginToFinish_LinkLoadStaleOk", "DnsImpact"),
             begin_to_finish_all_loads);
         break;
       default:
         break;
     }
   }
 
+  if (document_state->was_fetched_via_proxy() &&
+      document_state->was_fetched_via_spdy() &&
+      CommandLine::ForCurrentProcess()->HasSwitch(switches::kSpdyProxyOrigin)) {
+    UMA_HISTOGRAM_ENUMERATION(
+        "PLT.Abandoned_SpdyProxy", abandoned_page ? 1 : 0, 2);
+    PLT_HISTOGRAM("PLT.BeginToFinishDoc_SpdyProxy", begin_to_finish_doc);
+    PLT_HISTOGRAM("PLT.BeginToFinish_SpdyProxy", begin_to_finish_all_loads);
+  }
+
   // Histograms to determine if prefetch & prerender has an impact on PLT.
   static const bool prefetching_fieldtrial =
       base::FieldTrialList::TrialExists("Prefetch");
   if (prefetching_fieldtrial) {
     if (document_state->was_prefetcher()) {
       PLT_HISTOGRAM(base::FieldTrial::MakeName(
           "PLT.BeginToFinishDoc_ContentPrefetcher", "Prefetch"),
           begin_to_finish_doc);
       PLT_HISTOGRAM(base::FieldTrial::MakeName(
           "PLT.BeginToFinish_ContentPrefetcher", "Prefetch"),
@@ skipping 617 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();
 }