Print Preview: Add option to rasterize PDFs and add JPEG compression.

chrome/browser/ui/webui/print_preview/print_preview_handler.cc

Index: chrome/browser/ui/webui/print_preview/print_preview_handler.cc
diff --git a/chrome/browser/ui/webui/print_preview/print_preview_handler.cc b/chrome/browser/ui/webui/print_preview/print_preview_handler.cc
index 1d66c9838403de882aeb9d10f55b7102c5a1f300..5f40c0c3775077492320874bf0935ec6199b8c70 100644
--- a/chrome/browser/ui/webui/print_preview/print_preview_handler.cc
+++ b/chrome/browser/ui/webui/print_preview/print_preview_handler.cc
@@ -141,6 +141,7 @@ enum PrintSettingsBuckets {
   NON_DEFAULT_MARGINS,
   DISTILL_PAGE_UNUSED,
   SCALING,
+  PRINT_AS_IMAGE,
   PRINT_SETTINGS_BUCKET_BOUNDARY
 };
 
@@ -288,6 +289,12 @@ void ReportPrintSettingsStats(const base::DictionaryValue& settings) {
                           &external_preview) && external_preview) {
     ReportPrintSettingHistogram(EXTERNAL_PDF_PREVIEW);
   }
+
+  bool rasterize = false;
+  if (settings.GetBoolean(printing::kSettingRasterizePdf,
+                          &rasterize) && rasterize) {
+    ReportPrintSettingHistogram(PRINT_AS_IMAGE);
+  }
 }
 
 // Callback that stores a PDF file on disk.