Build fixes for fnl/musl

R=jamesr@chromium.org

Review URL: https://codereview.chromium.org/1422623002 .
diff --git a/shell/BUILD.gn b/shell/BUILD.gn
index ab2b534..43a1bb6 100644
--- a/shell/BUILD.gn
+++ b/shell/BUILD.gn
@@ -39,7 +39,9 @@
     "//shell/application_manager:mojo_application_manager_unittests",
   ]
 
-  if (is_android || is_linux) {
+  # TODO(cstout): fix breakpad build for fnl/musl
+  # https://code.google.com/p/google-breakpad/issues/detail?id=631
+  if ((is_android || is_linux) && !is_fnl) {
     deps += [ "//shell/crash:crash_unittests" ]
   }
 }
@@ -60,7 +62,9 @@
   ]
   shell_common_data_deps = [ ":mojo_shell_child" ]
 
-  if (is_android || is_linux) {
+  # TODO(cstout): fix breakpad build for fnl/musl
+  # (see comment above)
+  if ((is_android || is_linux) && !is_fnl) {
     shell_common_deps += [ "//shell/crash" ]
   }