commit 7b1d747a599a752e493e34e7bbf841d8b4c7882f
Author: Tomasz Śniatowski <tomasz.sniatowski@xperi.com>
Date:   Thu May 25 16:09:27 2023 +0000

    Dep on //printing in //ui/qt if printing is enabled
    
    qt_ui.h can use printing/printing_context_linux.h, and needs to dep
    on //printing if it does, to avoid a missing dependency build break.
    
    Without this fix, a clean build can fail on obj/ui/qt/qt/qt_ui.o with
      In file included from ../../ui/qt/qt_ui.cc:8:
      In file included from ../../ui/qt/qt_ui.h:21:
      ../../printing/printing_context_linux.h:12:10: fatal error:
      'printing/mojom/print.mojom.h' file not found
    
    (the #include is a // NOGNCHECK one, which is how this came to be)
    
    Change-Id: I70af37071e232ffbf462a05e026051efae044b69
    Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4566944
    Reviewed-by: Thomas Anderson <thomasanderson@chromium.org>
    Auto-Submit: Tomasz Śniatowski <tomasz.sniatowski@xperi.com>
    Commit-Queue: Thomas Anderson <thomasanderson@chromium.org>
    Cr-Commit-Position: refs/heads/main@{#1149138}

diff --git a/ui/qt/BUILD.gn b/ui/qt/BUILD.gn
index 6a67961edc2f7..89fffcf3089f9 100644
--- a/ui/qt/BUILD.gn
+++ b/ui/qt/BUILD.gn
@@ -5,6 +5,7 @@
 import("//build/config/chromecast_build.gni")
 import("//build/config/linux/pkg_config.gni")
 import("//build/config/sysroot.gni")
+import("//printing/buildflags/buildflags.gni")
 import("//ui/qt/qt.gni")
 
 assert(use_qt)
@@ -127,6 +128,9 @@ component("qt") {
     "//ui/views",
   ]
   public_deps = [ "//skia" ]
+  if (enable_printing) {
+    public_deps += [ "//printing" ]
+  }
 
   sources = [
     "qt_ui.cc",