Displaying "simplify page" on print preview by default

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 cf0ab046dec1e896d7dc2182fc19bcf556781aa2..a60b7ddb778359ec5c3da0558941326cea7a56e2 100644
--- a/chrome/browser/ui/webui/print_preview/print_preview_handler.cc
+++ b/chrome/browser/ui/webui/print_preview/print_preview_handler.cc
@@ -1292,22 +1292,14 @@ void PrintPreviewHandler::SendInitialSettings(
   web_ui()->CallJavascriptFunction("setInitialSettings", initial_settings);
 
   WebContents* initiator = GetInitiator();
-  if (initiator && cmdline->HasSwitch(switches::kEnableDomDistiller) &&
+  if (initiator &&
+      !(cmdline->HasSwitch(switches::kDisablePrintPreviewSimplify)) &&

[Lei Zhang, 2015/10/29 19:14:57]

nit: Too many parenthesis. Just !cmdline->Foo() &&

You can also break this code up a bit more:

if (!cmdline->HasSwitch(switches::kDisablePrintPreviewSimplify))
  return;

WebContents* initiator = GetInitiator();
if (initiator &&
    dom_distiller::url_utils::IsUrlDistillable(
        initiator->GetLastCommittedURL())) {
  web_ui()->CallJavascriptFunction("allowDistillPage");
}

[mvendramini_hp, 2015/10/30 11:05:36]

Done.

       dom_distiller::url_utils::IsUrlDistillable(
           initiator->GetLastCommittedURL())) {
-    dom_distiller::IsDistillablePage(
-        initiator, false,
-        base::Bind(&PrintPreviewHandler::HandleIsPageDistillableResult,
-                   weak_factory_.GetWeakPtr()));
+    web_ui()->CallJavascriptFunction("allowDistillPage");
   }
 }
 
-void PrintPreviewHandler::HandleIsPageDistillableResult(bool distillable) {
-  VLOG(1) << "Distillable page detection finished";
-  if (distillable)
-    web_ui()->CallJavascriptFunction("detectDistillablePage");
-}
-
 void PrintPreviewHandler::ClosePreviewDialog() {
   print_preview_ui()->OnClosePrintPreviewDialog();
 }