From a747221b013cc8d458eea85130a183be24fa2ab6 Mon Sep 17 00:00:00 2001
From: Mike Bragg <mbragg1313@yahoo.com>
Date: Tue, 22 Oct 2024 20:05:16 +0000
Subject: [PATCH] Implement PrintCrossProcessSubframe for AlloyBrowserHostImpl
 (fixes #3768)

---
 libcef/browser/alloy/alloy_browser_host_impl.cc | 11 +++++++++++
 libcef/browser/alloy/alloy_browser_host_impl.h  |  4 ++++
 2 files changed, 15 insertions(+)

diff --git a/libcef/browser/alloy/alloy_browser_host_impl.cc b/libcef/browser/alloy/alloy_browser_host_impl.cc
index 135b6cebb..63d1ba47a 100644
--- a/libcef/browser/alloy/alloy_browser_host_impl.cc
+++ b/libcef/browser/alloy/alloy_browser_host_impl.cc
@@ -35,6 +35,7 @@
 #include "chrome/browser/picture_in_picture/picture_in_picture_window_manager.h"
 #include "chrome/common/webui_url_constants.h"
 #include "components/input/native_web_keyboard_event.h"
+#include "components/printing/browser/print_composite_client.h"
 #include "components/zoom/page_zoom.h"
 #include "content/browser/gpu/compositor_util.h"
 #include "content/public/browser/desktop_media_id.h"
@@ -922,6 +923,16 @@ bool AlloyBrowserHostImpl::IsAudioMuted() {
 // content::WebContentsDelegate methods.
 // -----------------------------------------------------------------------------
 
+void AlloyBrowserHostImpl::PrintCrossProcessSubframe(
+    content::WebContents* web_contents,
+    const gfx::Rect& rect,
+    int document_cookie,
+    content::RenderFrameHost* subframe_host) const {
+  auto* client = printing::PrintCompositeClient::FromWebContents(web_contents);
+  if (client)
+    client->PrintCrossProcessSubframe(rect, document_cookie, subframe_host);
+}
+
 content::WebContents* AlloyBrowserHostImpl::OpenURLFromTab(
     content::WebContents* source,
     const content::OpenURLParams& params,
diff --git a/libcef/browser/alloy/alloy_browser_host_impl.h b/libcef/browser/alloy/alloy_browser_host_impl.h
index 9c2a409fd..6d3acc82e 100644
--- a/libcef/browser/alloy/alloy_browser_host_impl.h
+++ b/libcef/browser/alloy/alloy_browser_host_impl.h
@@ -174,6 +174,10 @@ class AlloyBrowserHostImpl : public CefBrowserHostBase,
   DestructionState destruction_state() const { return destruction_state_; }
 
   // content::WebContentsDelegate methods.
+  void PrintCrossProcessSubframe(content::WebContents* web_contents,
+      const gfx::Rect& rect,
+      int document_cookie,
+      content::RenderFrameHost* subframe_host) const override;
   content::WebContents* OpenURLFromTab(
       content::WebContents* source,
       const content::OpenURLParams& params,