Implement window.print() on Android

chrome/browser/printing/printing_message_filter.cc

Index: chrome/browser/printing/printing_message_filter.cc
diff --git a/chrome/browser/printing/printing_message_filter.cc b/chrome/browser/printing/printing_message_filter.cc
index 6af14f7f13139f166d1dea644f004294a9b5dcdd..1c633cbebbcfcec768f5abbe0d5ea4a42e55afd4 100644
--- a/chrome/browser/printing/printing_message_filter.cc
+++ b/chrome/browser/printing/printing_message_filter.cc
@@ -34,6 +34,7 @@
 
 #if defined(OS_ANDROID)
 #include "base/strings/string_number_conversions.h"
+#include "chrome/browser/android/tab_android.h"
 #include "chrome/browser/printing/print_view_manager_basic.h"
 #include "printing/printing_context_android.h"
 #endif
@@ -280,7 +281,7 @@ void PrintingMessageFilter::OnGetDefaultPrintSettings(IPC::Message* reply_msg) {
   // Loads default settings. This is asynchronous, only the IPC message sender
   // will hang until the settings are retrieved.
   printer_query->GetSettings(
-      PrinterQuery::DEFAULTS,
+      GetSettingsAskParam::DEFAULTS,
       0,
       false,
       DEFAULT_MARGINS,
@@ -323,8 +324,17 @@ void PrintingMessageFilter::OnScriptedPrint(
     printer_query =
         queue_->CreatePrinterQuery(render_process_id_, reply_msg->routing_id());
   }
+
+  DLOG(INFO) << "DGN OnScriptedPrint - cookie: " << params.cookie;
+
+  GetSettingsAskParam ask_param;
+  if (params.use_system_specific_flow) { // Android only path
+    ask_param = GetSettingsAskParam::SYSTEM_SPECIFIC;
+  } else {
+    ask_param = GetSettingsAskParam::ASK_USER;
+  }
   printer_query->GetSettings(
-      PrinterQuery::ASK_USER,
+      ask_param,
       params.expected_pages_count,
       params.has_selection,
       params.margin_type,
@@ -338,6 +348,9 @@ void PrintingMessageFilter::OnScriptedPrintReply(
     scoped_refptr<PrinterQuery> printer_query,
     IPC::Message* reply_msg) {
   PrintMsg_PrintPages_Params params;
+
+  DLOG(INFO) << "DGN OnScriptedPrintReply";
+
 #if defined(OS_ANDROID)
   // We need to save the routing ID here because Send method below deletes the
   // |reply_msg| before we can get the routing ID for the Android code.
@@ -373,6 +386,9 @@ void PrintingMessageFilter::OnScriptedPrintReply(
 #if defined(OS_ANDROID)
 void PrintingMessageFilter::UpdateFileDescriptor(int render_view_id, int fd) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
+
+  DLOG(INFO) << "DGN UpdateFileDescriptor";
+
   content::WebContents* wc = GetWebContentsForRenderView(render_view_id);
   if (!wc)
     return;