Roll Clang 233105-2:236765-2

build/config/compiler/BUILD.gn

Index: build/config/compiler/BUILD.gn
diff --git a/build/config/compiler/BUILD.gn b/build/config/compiler/BUILD.gn
index 0e28e7da8be6dce3e5b5d93500416c894b8513cd..524578e23e7c90657666cb86dd5acbc68f1f3d1c 100644
--- a/build/config/compiler/BUILD.gn
+++ b/build/config/compiler/BUILD.gn
@@ -340,6 +340,13 @@ config("compiler") {
     } else {
       cflags += [ "-funwind-tables" ]
     }
+
+    if (is_clang && !is_nacl && !is_debug) {
+      # Non-unique section names appears to make linker dead stripping
+      # less effective. See http://crbug.com/483026#c20
+      # TODO(hans): Remove this if resolved upstream.
+      cflags += [ "-funique-section-names" ]
+    }
   }
 
   # Linux/Android common flags setup.