Adding previews information to PLM UKM

chrome/browser/previews/previews_infobar_delegate.cc

 // Copyright 2016 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/previews/previews_infobar_delegate.h"
 
 #include "base/feature_list.h"
 #include "base/metrics/field_trial_params.h"
 #include "base/metrics/histogram.h"
 #include "base/optional.h"
 #include "base/strings/string16.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/android/android_theme_resources.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/infobars/infobar_service.h"
 #include "chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_settings.h"
 #include "chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_settings_factory.h"
 #include "chrome/browser/previews/previews_infobar_tab_helper.h"
 #include "chrome/grit/generated_resources.h"
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_pingback_client.h"
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_service.h"
 #include "components/data_reduction_proxy/core/common/data_reduction_proxy_params.h"
 #include "components/infobars/core/infobar.h"
 #include "components/network_time/network_time_tracker.h"
 #include "components/previews/core/previews_features.h"
+#include "components/ukm/public/ukm_entry_builder.h"
+#include "components/ukm/public/ukm_recorder.h"
+#include "components/ukm/ukm_source.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/web_contents.h"
 #include "ui/base/l10n/l10n_util.h"
 
 #if defined(OS_ANDROID)
 #include "chrome/browser/ui/android/infobars/previews_infobar.h"
 #endif
 
 namespace {
 
+const char kPreviewsName[] = "Previews";
+const char kPreviewsOptOut[] = "opt_out";
+
 void RecordPreviewsInfoBarAction(
     previews::PreviewsType previews_type,
     PreviewsInfoBarDelegate::PreviewsInfoBarAction action) {
   int32_t max_limit =
       static_cast<int32_t>(PreviewsInfoBarDelegate::INFOBAR_INDEX_BOUNDARY);
   base::LinearHistogram::FactoryGet(
       base::StringPrintf("Previews.InfoBarAction.%s",
                          GetStringNameForType(previews_type).c_str()),
       1, max_limit, max_limit + 1,
       base::HistogramBase::kUmaTargetedHistogramFlag)
@@ skipping 171 matching lines @@
   infobar_dismissed_action_ = INFOBAR_LOAD_ORIGINAL_CLICKED;
   if (!on_dismiss_callback_.is_null())
     on_dismiss_callback_.Run(true);
   on_dismiss_callback_.Reset();
 
   content::WebContents* web_contents =
       InfoBarService::WebContentsFromInfoBar(infobar());
 
   ReportPingbackInformation(web_contents);
 
+  // TODO(ryansturm): Add support for Offline Previews in PLM UKM.
+  if (previews_type_ != previews::PreviewsType::OFFLINE)
+    RecordUKMOptOut();
+
   if ((previews_type_ == previews::PreviewsType::LITE_PAGE ||
        previews_type_ == previews::PreviewsType::LOFI) &&
       !data_reduction_proxy::params::IsBlackListEnabledForServerPreviews()) {
     IncrementDataReductionProxyPrefs(web_contents);
   }
 
   ReloadWithoutPreviews(previews_type_, web_contents);
 
   return true;
 }
@@ skipping 37 matching lines @@
         IDS_PREVIEWS_INFOBAR_TIMESTAMP_MINUTES,
         base::IntToString16(staleness_in_minutes));
   } else if (staleness_in_minutes < 120) {
     return l10n_util::GetStringUTF16(IDS_PREVIEWS_INFOBAR_TIMESTAMP_ONE_HOUR);
   } else {
     return l10n_util::GetStringFUTF16(
         IDS_PREVIEWS_INFOBAR_TIMESTAMP_HOURS,
         base::IntToString16(staleness_in_minutes / 60));
   }
 }
+
+void PreviewsInfoBarDelegate::RecordUKMOptOut() {
+  content::WebContents* web_contents =
+      InfoBarService::WebContentsFromInfoBar(infobar());
+  PreviewsInfoBarTabHelper* infobar_tab_helper =
+      PreviewsInfoBarTabHelper::FromWebContents(web_contents);
+  if (!infobar_tab_helper || !infobar_tab_helper->source_id()) {
+    return;
+  }
+
+  ukm::UkmRecorder* ukm_recorder = g_browser_process->ukm_recorder();
+  std::unique_ptr<ukm::UkmEntryBuilder> builder = ukm_recorder->GetEntryBuilder(
+      infobar_tab_helper->source_id().value(), kPreviewsName);
+  builder->AddMetric(kPreviewsOptOut, true);
+}