Make sure official GN builds on Linux have debug info.

build/config/compiler/compiler.gni

Index: build/config/compiler/compiler.gni
diff --git a/build/config/compiler/compiler.gni b/build/config/compiler/compiler.gni
index d5db930dab419abdc41ceaf4e148f5a7239c759b..5dc77f51c3459299d9cf9c847d8b49714648a08d 100644
--- a/build/config/compiler/compiler.gni
+++ b/build/config/compiler/compiler.gni
@@ -18,8 +18,9 @@ declare_args() {
 assert(symbol_level >= -1 && symbol_level <= 2, "Invalid symbol_level")
 if (symbol_level == -1) {
   # Linux is slowed by having symbols as part of the target binary, whereas
-  # Mac and Windows have them separate, so in Release Linux, default them off.
-  if (is_debug || !is_linux) {
+  # Mac and Windows have them separate, so in Release Linux, default them off,
+  # but keep them on for Official builds.
+  if (is_debug || !is_linux || is_official_build)) {

[brettw, 2015/09/29 21:12:29]

Theoretically this needs //build/config/chrome_build.gni imported. Maybe it
works because this was already imported by somebody else?

     symbol_level = 2
   } else if (is_asan || is_lsan || is_tsan || is_msan) {
     # Sanitizers require symbols for filename suppressions to work.