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

chrome/browser/ui/webui/print_preview/print_preview_handler.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/ui/webui/print_preview/print_preview_handler.h"
 
 #include <ctype.h>
 #include <stddef.h>
 
 #include <map>
@@ skipping 123 matching lines @@
   CSS_BACKGROUND,
   SELECTION_ONLY,
   EXTERNAL_PDF_PREVIEW,
   PAGE_RANGE,
   DEFAULT_MEDIA,
   NON_DEFAULT_MEDIA,
   COPIES,
   NON_DEFAULT_MARGINS,
   DISTILL_PAGE_UNUSED,
   SCALING,
+  PRINT_AS_IMAGE,
   PRINT_SETTINGS_BUCKET_BOUNDARY
 };
 
 void ReportUserActionHistogram(enum UserActionBuckets event) {
   UMA_HISTOGRAM_ENUMERATION("PrintPreview.UserAction", event,
                             USERACTION_BUCKET_BOUNDARY);
 }
 
 void ReportPrintSettingHistogram(enum PrintSettingsBuckets setting) {
   UMA_HISTOGRAM_ENUMERATION("PrintPreview.PrintSettings", setting,
@@ skipping 127 matching lines @@
   if (settings.GetBoolean(printing::kSettingShouldPrintSelectionOnly,
                           &selection_only) && selection_only) {
     ReportPrintSettingHistogram(SELECTION_ONLY);
   }
 
   bool external_preview = false;
   if (settings.GetBoolean(printing::kSettingOpenPDFInPreview,
                           &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.
 void PrintToPdfCallback(const scoped_refptr<base::RefCountedBytes>& data,
                         const base::FilePath& path,
                         const base::Closure& pdf_file_saved_closure) {
   DCHECK(BrowserThread::GetBlockingPool()->RunsTasksOnCurrentThread());
   base::File file(path,
                   base::File::FLAG_CREATE_ALWAYS | base::File::FLAG_WRITE);
   file.WriteAtCurrentPos(reinterpret_cast<const char*>(data->front()),
@@ skipping 1415 matching lines @@
 
 void PrintPreviewHandler::UnregisterForGaiaCookieChanges() {
   if (gaia_cookie_manager_service_)
     gaia_cookie_manager_service_->RemoveObserver(this);
 }
 
 void PrintPreviewHandler::SetPdfSavedClosureForTesting(
     const base::Closure& closure) {
   pdf_file_saved_closure_ = closure;
 }