2 files changed, 25 insertions, 2 deletions

diff --git a/chrome/browser/printing/print_view_manager.cc b/chrome/browser/printing/print_view_manager.cc
index 4e017e8..bdc9da3 100644
--- a/chrome/browser/printing/print_view_manager.cc
+++ b/chrome/browser/printing/print_view_manager.cc
@@ -27,6 +27,7 @@ PrintViewManager::PrintViewManager(WebContents& owner)
       waiting_to_print_(false),
       inside_inner_message_loop_(false),
       waiting_to_show_print_dialog_(false) {
+  memset(&print_params_, 0, sizeof(print_params_));
 }
 
 PrintViewManager::~PrintViewManager() {
@@ -239,6 +240,25 @@ void PrintViewManager::OnNotifyPrintJobEvent(
 
 void PrintViewManager::OnNotifyPrintJobInitEvent(
     const JobEventDetails& event_details) {
+  ViewMsg_Print_Params old_print_params(print_params_);
+
+  // Backup the print settings relevant to the renderer.
+  DCHECK_EQ(print_job_->document(), event_details.document());
+  event_details.document()->settings().RenderParams(&print_params_);
+  print_params_.document_cookie = event_details.document()->cookie();
+  DCHECK_GT(print_params_.document_cookie, 0);
+
+  // If settings changed
+  DCHECK(owner_.render_view_host());
+  // Equals() doesn't compare the cookie value.
+  if (owner_.render_view_host() &&
+      owner_.render_view_host()->IsRenderViewLive() &&
+      (!old_print_params.Equals(print_params_) ||
+       !event_details.document()->page_count())) {
+    // TODO(maruel): Will never happen, this code is about to be deleted.
+    NOTREACHED();
+  }
+
   // Continue even if owner_.render_view_host() is dead because we may already
   // have buffered all the necessary pages.
   switch (event_details.type()) {
@@ -440,6 +460,7 @@ void PrintViewManager::ReleasePrintJob() {
   print_job_->DisconnectSource();
   // Don't close the worker thread.
   print_job_ = NULL;
+  memset(&print_params_, 0, sizeof(print_params_));
 }
 
 void PrintViewManager::PrintNowInternal() {
diff --git a/chrome/browser/printing/print_view_manager.h b/chrome/browser/printing/print_view_manager.h
index 3cd0272..405b180 100644
--- a/chrome/browser/printing/print_view_manager.h
+++ b/chrome/browser/printing/print_view_manager.h
@@ -5,13 +5,12 @@
 #ifndef CHROME_BROWSER_PRINTING_PRINT_VIEW_MANAGER_H_
 #define CHROME_BROWSER_PRINTING_PRINT_VIEW_MANAGER_H_
 
-#include "base/ref_counted.h"
 #include "chrome/browser/printing/printed_pages_source.h"
 #include "chrome/common/notification_observer.h"
+#include "chrome/common/render_messages.h"
 
 class RenderViewHost;
 class WebContents;
-struct ViewHostMsg_DidPrintPage_Params;
 
 namespace printing {
 
@@ -119,6 +118,9 @@ class PrintViewManager : public NotificationObserver,
   // print_job_ is initialized.
   bool OpportunisticallyCreatePrintJob(int cookie);
 
+  // Cache the last print settings requested to the renderer.
+  ViewMsg_Print_Params print_params_;
+
   // Manages the low-level talk to the printer.
   scoped_refptr<PrintJob> print_job_;