Disable scroll anchoring when in printing mode

components/printing/renderer/print_web_view_helper.cc

Index: components/printing/renderer/print_web_view_helper.cc
diff --git a/components/printing/renderer/print_web_view_helper.cc b/components/printing/renderer/print_web_view_helper.cc
index 7e9df81aac57f41ec92577098edb65509a6baf92..74b4d44f00b8d141dd6596e450d05ca856e91d12 100644
--- a/components/printing/renderer/print_web_view_helper.cc
+++ b/components/printing/renderer/print_web_view_helper.cc
@@ -803,11 +803,11 @@ void PrepareFrameAndViewForPrint::FinishPrinting() {
     blink::WebView* web_view = frame->view();
     if (is_printing_started_) {
       is_printing_started_ = false;
-      frame->printEnd();
       if (!owns_web_view_) {
         web_view->settings()->setShouldPrintBackgrounds(false);
         RestoreSize();
       }
+      frame->printEnd();

[ymalik, 2016/10/12 22:21:00]

This is needed because RestoreSize would trigger layout which would trigger
scroll anchoring. Moving the call to printEnd ensures that anchoring remains
disabled from RestoreSize.

Also, when we do printStart then resize, so it makes sense to restore size then
printEnd.

     }
     if (owns_web_view_) {
       DCHECK(!frame->isLoading());