Deprecate Once-Per-Origin Navigation histograms

chrome/browser/tab_contents/navigation_metrics_recorder.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/browser/tab_contents/navigation_metrics_recorder.h"
 
 #include "base/metrics/histogram_macros.h"
 #include "build/build_config.h"
 #include "chrome/browser/browser_process.h"
-#include "chrome/browser/tab_contents/origins_seen_service_factory.h"
 #include "components/navigation_metrics/navigation_metrics.h"
-#include "components/navigation_metrics/origins_seen_service.h"
 #include "components/rappor/public/rappor_utils.h"
 #include "components/rappor/rappor_service_impl.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/navigation_handle.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/render_widget_host.h"
 #include "content/public/browser/render_widget_host_view.h"
 #include "content/public/common/frame_navigate_params.h"
@@ skipping 47 matching lines @@
   rappor_service_ = service;
 }
 
 void NavigationMetricsRecorder::DidFinishNavigation(
     content::NavigationHandle* navigation_handle) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   if (!navigation_handle->IsInMainFrame() || !navigation_handle->HasCommitted())
     return;
 
   content::BrowserContext* context = web_contents()->GetBrowserContext();
-  navigation_metrics::OriginsSeenService* service =
-      OriginsSeenServiceFactory::GetForBrowserContext(context);
   content::NavigationEntry* last_committed_entry =
       web_contents()->GetController().GetLastCommittedEntry();
-  const url::Origin origin(last_committed_entry->GetVirtualURL());
-  bool have_already_seen_origin = service->Insert(origin);
 
   navigation_metrics::RecordMainFrameNavigation(
       last_committed_entry->GetVirtualURL(),
-      navigation_handle->IsSameDocument(), context->IsOffTheRecord(),
-      have_already_seen_origin);
+      navigation_handle->IsSameDocument(), context->IsOffTheRecord());
 
   // Record the domain and registry of the URL that resulted in a navigation to
   // a |data:| URL, either by redirects or user clicking a link.
   if (last_committed_entry->GetVirtualURL().SchemeIs(url::kDataScheme) &&
       !ui::PageTransitionCoreTypeIs(navigation_handle->GetPageTransition(),
                                     ui::PAGE_TRANSITION_TYPED)) {
     if (!navigation_handle->GetPreviousURL().is_empty()) {
       rappor::SampleDomainAndRegistryFromGURL(
           rappor_service_, "Navigation.Scheme.Data",
           navigation_handle->GetPreviousURL());
     }
 
     // Also record the mime type of the data: URL.
     std::string mime_type;
     std::string charset;
     if (net::DataURL::Parse(last_committed_entry->GetVirtualURL(), &mime_type,
                             &charset, nullptr)) {
       RecordDataURLMimeType(mime_type);
     }
   }
 }