Roll Clang 233105-2:237739-1

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 18176e2c9b4bcec70bd5ad9129916a86918df386..c7ebe36fd75b4be6c2397f811a35320d9fdcc7ae 100644
--- a/build/config/compiler/BUILD.gn
+++ b/build/config/compiler/BUILD.gn
@@ -345,6 +345,13 @@ 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.