PDF: Add UMA to track embedded PDF triggered drive-by downloads.

chrome/renderer/chrome_content_renderer_client.cc

Index: chrome/renderer/chrome_content_renderer_client.cc
diff --git a/chrome/renderer/chrome_content_renderer_client.cc b/chrome/renderer/chrome_content_renderer_client.cc
index 51e8e616838f365f3447c388de5b5f6caa004056..f4311c6a2d8b31df8734ebc8793de1b72b26da07 100644
--- a/chrome/renderer/chrome_content_renderer_client.cc
+++ b/chrome/renderer/chrome_content_renderer_client.cc
@@ -146,6 +146,7 @@
 #endif
 
 #if BUILDFLAG(ENABLE_PLUGINS)
+#include "chrome/common/pdf_uma.h"
 #include "chrome/common/plugin_utils.h"
 #include "chrome/renderer/plugins/chrome_plugin_placeholder.h"
 #include "chrome/renderer/plugins/power_saver_info.h"
@@ -824,10 +825,10 @@ WebPlugin* ChromeContentRendererClient::CreatePlugin(
           bool is_main_frame_plugin_document =
               render_frame->IsMainFrame() &&
               render_frame->GetWebFrame()->GetDocument().IsPluginDocument();
-          PluginUMAReporter::ReportPDFLoadStatus(
+          ReportPDFLoadStatus(
               is_main_frame_plugin_document
-                  ? PluginUMAReporter::LOADED_FULL_PAGE_PDF_WITH_PDFIUM
-                  : PluginUMAReporter::LOADED_EMBEDDED_PDF_WITH_PDFIUM);
+                  ? PDFLoadStatus::LOADED_FULL_PAGE_PDF_WITH_PDFIUM
+                  : PDFLoadStatus::LOADED_EMBEDDED_PDF_WITH_PDFIUM);
         }
 
         // Delay loading plugins if prerendering.
@@ -871,8 +872,8 @@ WebPlugin* ChromeContentRendererClient::CreatePlugin(
         PluginUMAReporter::GetInstance()->ReportPluginDisabled(orig_mime_type,
                                                                url);
         if (info.name == ASCIIToUTF16(ChromeContentClient::kPDFPluginName)) {
-          PluginUMAReporter::ReportPDFLoadStatus(
-              PluginUMAReporter::
+          ReportPDFLoadStatus(
+              PDFLoadStatus::
                   SHOWED_DISABLED_PLUGIN_PLACEHOLDER_FOR_EMBEDDED_PDF);
         }