Enable side-by-side beta and dev channels.

chrome/BUILD.gn

Index: chrome/BUILD.gn
diff --git a/chrome/BUILD.gn b/chrome/BUILD.gn
index e739e609c94eeba1cb1f0398b0d2310e3837b89e..043283401726e49f5ed9e55a8c6c01f5594de1f3 100644
--- a/chrome/BUILD.gn
+++ b/chrome/BUILD.gn
@@ -1435,8 +1435,12 @@ copy("visual_elements_resources") {
 
   if (is_chrome_branded) {
     sources += [
+      "//chrome/app/theme/$branding_path_component/win/tiles/LogoBeta.png",
       "//chrome/app/theme/$branding_path_component/win/tiles/LogoCanary.png",
+      "//chrome/app/theme/$branding_path_component/win/tiles/LogoDev.png",
+      "//chrome/app/theme/$branding_path_component/win/tiles/SmallLogoBeta.png",
       "//chrome/app/theme/$branding_path_component/win/tiles/SmallLogoCanary.png",
+      "//chrome/app/theme/$branding_path_component/win/tiles/SmallLogoDev.png",
     ]
   }