Merge MB, installer build changes for official CrOS builders to M53.

chrome/installer/BUILD.gn

Index: chrome/installer/BUILD.gn
diff --git a/chrome/installer/BUILD.gn b/chrome/installer/BUILD.gn
index 1bd34f40b7622dfe9cd91b03b4683962241a8453..31416462dd8bec14eb790639a03b52ac7c021f39 100644
--- a/chrome/installer/BUILD.gn
+++ b/chrome/installer/BUILD.gn
@@ -6,8 +6,8 @@ import("//build/config/chrome_build.gni")
 
 # Meta-target that forwards to the installer of the correct type (if any).
 group("installer") {
-  # We only make Linux installers for 64-bit desktop.
-  if (is_desktop_linux && is_chrome_branded && target_cpu == "x64") {
+  # We only make Linux installers for 64-bit desktop and CrOS.
+  if (is_linux && is_chrome_branded && target_cpu == "x64") {
     deps = [
       "//chrome/installer/linux",
     ]