PDF: Add UMA to track successful / failed PDF loads

chrome/renderer/chrome_content_renderer_client.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/chrome_content_renderer_client.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/debug/crash_logging.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/metrics/user_metrics_action.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
 #include "base/values.h"
 #include "build/build_config.h"
 #include "chrome/common/channel_info.h"
+#include "chrome/common/chrome_content_client.h"
 #include "chrome/common/chrome_features.h"
 #include "chrome/common/chrome_isolated_world_ids.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/crash_keys.h"
 #include "chrome/common/features.h"
 #include "chrome/common/pause_tabs_field_trial.h"
 #include "chrome/common/pepper_permission_util.h"
 #include "chrome/common/prerender_types.h"
 #include "chrome/common/render_messages.h"
@@ skipping 111 matching lines @@
 
 #if BUILDFLAG(ENABLE_PLUGINS)
 #include "chrome/common/plugin_utils.h"
 #include "chrome/renderer/plugins/chrome_plugin_placeholder.h"
 #include "chrome/renderer/plugins/power_saver_info.h"
 #else
 #include "components/plugins/renderer/plugin_placeholder.h"
 #endif
 
 #if BUILDFLAG(ENABLE_PRINTING)
-#include "chrome/common/chrome_content_client.h"
 #include "chrome/renderer/printing/chrome_print_web_view_helper_delegate.h"
 #include "components/printing/renderer/print_web_view_helper.h"
 #include "printing/print_settings.h"
 #endif
 
 #if BUILDFLAG(ENABLE_PRINT_PREVIEW)
 #include "chrome/renderer/pepper/chrome_pdf_print_client.h"
 #endif
 
 #if BUILDFLAG(ENABLE_SPELLCHECK)
@@ skipping 641 matching lines @@
 #if defined(OS_CHROMEOS)
                 l10n_util::GetStringUTF16(IDS_NACL_PLUGIN_BLOCKED));
 #else
                 l10n_util::GetStringFUTF16(IDS_PLUGIN_BLOCKED, group_name));
 #endif
             break;
           }
         }
 #endif  // !defined(DISABLE_NACL) && BUILDFLAG(ENABLE_EXTENSIONS)
 
+        // Report PDF load metrics. Since the PDF plugin is comprised of an
+        // extension that loads a second plugin, avoid double counting by
+        // ignoring the creation of the second plugin.
+        if (info.name == ASCIIToUTF16(ChromeContentClient::kPDFPluginName) &&
+            GURL(frame->GetDocument().Url()).host_piece() !=
+                extension_misc::kPdfExtensionId) {
+          bool is_main_frame_plugin_document =
+              render_frame->IsMainFrame() &&
+              render_frame->GetWebFrame()->GetDocument().IsPluginDocument();
+          PluginUMAReporter::ReportPDFLoadStatus(
+              is_main_frame_plugin_document
+                  ? PluginUMAReporter::LOADED_FULL_PAGE_PDF_WITH_PDFIUM
+                  : PluginUMAReporter::LOADED_EMBEDDED_PDF_WITH_PDFIUM);
+        }
+
         // Delay loading plugins if prerendering.
         // TODO(mmenke):  In the case of prerendering, feed into
         //                ChromeContentRendererClient::CreatePlugin instead, to
         //                reduce the chance of future regressions.
         bool is_prerendering =
             prerender::PrerenderHelper::IsPrerendering(render_frame);
 
         bool power_saver_setting_on =
             status ==
             ChromeViewHostMsg_GetPluginInfo_Status::kPlayImportantContent;
@@ skipping 20 matching lines @@
           placeholder->AllowLoading();
           break;
         }
 
         // Same-origin and whitelisted-origin plugins skip the placeholder.
         return render_frame->CreatePlugin(info, params, nullptr);
       }
       case ChromeViewHostMsg_GetPluginInfo_Status::kDisabled: {
         PluginUMAReporter::GetInstance()->ReportPluginDisabled(orig_mime_type,
                                                                url);
+        if (info.name == ASCIIToUTF16(ChromeContentClient::kPDFPluginName)) {
+          PluginUMAReporter::ReportPDFLoadStatus(
+              PluginUMAReporter::
+                  SHOWED_DISABLED_PLUGIN_PLACEHOLDER_FOR_EMBEDDED_PDF);
+        }
+
         placeholder = create_blocked_plugin(
             IDR_DISABLED_PLUGIN_HTML,
             l10n_util::GetStringFUTF16(IDS_PLUGIN_DISABLED, group_name));
         break;
       }
       case ChromeViewHostMsg_GetPluginInfo_Status::kFlashHiddenPreferHtml: {
         placeholder = create_blocked_plugin(
             IDR_PREFER_HTML_PLUGIN_HTML,
             l10n_util::GetStringFUTF16(IDS_PLUGIN_PREFER_HTML_BY_DEFAULT,
                                        group_name));
@@ skipping 686 matching lines @@
 
   RecordYouTubeRewriteUMA(result);
   return corrected_url.ReplaceComponents(r);
 }
 
 std::unique_ptr<base::TaskScheduler::InitParams>
 ChromeContentRendererClient::GetTaskSchedulerInitParams() {
   return task_scheduler_util::
       GetRendererTaskSchedulerInitParamsFromCommandLine();
 }