[Mac/GN] Implement dSYM generation and stripping.

chrome/BUILD.gn

Index: chrome/BUILD.gn
diff --git a/chrome/BUILD.gn b/chrome/BUILD.gn
index c66526065a4b1ae97fae471a3351b24c80cb4f0b..575a75f517d3e7c0cff2172a341fa55d25492e47 100644
--- a/chrome/BUILD.gn
+++ b/chrome/BUILD.gn
@@ -21,6 +21,7 @@ if (is_android) {
 } else if (is_mac) {
   import("//build/compiled_action.gni")
   import("//build/config/mac/rules.gni")
+  import("//build/config/mac/symbols.gni")
   import("//build/mac/tweak_info_plist.gni")
   import("//build/util/branding.gni")
   import("//build/util/version.gni")
@@ -426,6 +427,13 @@ if (is_win) {
       ":chrome_versioned_bundle_data",
       "//chrome/common:version_header",
     ]
+
+    if (enable_stripping) {

[Dirk Pranke, 2016/05/31 19:58:19]

maybe add a comment explaining what this is doing (and why it's different from
the default strip logic)?

[Robert Sesek, 2016/06/01 20:21:05]

Done.

+      remove_configs = [ "//build/config/mac:strip_all" ]
+
+      ldflags =
+          [ "-Wcrl,strip,-s," + rebase_path("app/app.saves", root_build_dir) ]
+    }
   }
 
   compiled_action("chrome_app_strings") {
@@ -568,6 +576,13 @@ if (is_win) {
       "-rpath",
       "@loader_path/../../../../../../..",
     ]
+
+    if (enable_stripping) {
+      remove_configs = [ "//build/config/mac:strip_all" ]
+
+      ldflags +=
+          [ "-Wcrl,strip,-s," + rebase_path("app/app.saves", root_build_dir) ]
+    }
   }
 
   bundle_data("chrome_framework_locales") {