Use --icf=all instead of --icf=safe

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 dbe2e5744993faa616fb6f8529a5f16e8d07d67b..7efe1d2ca8264794f38cae0a3e4eccdcb8404844 100644
--- a/build/config/compiler/BUILD.gn
+++ b/build/config/compiler/BUILD.gn
@@ -416,7 +416,7 @@ config("compiler") {
       "-fuse-ld=gold",
 
       # TODO(brettw) common.gypi has this only for target toolset.
-      "-Wl,--icf=safe",
+      "-Wl,--icf=all",
 
       # Experimentation found that using four linking threads
       # saved ~20% of link time.
@@ -513,7 +513,7 @@ config("compiler") {
     if (current_cpu == "arm") {
       ldflags += [
         # Enable identical code folding to reduce size.
-        "-Wl,--icf=safe",
+        "-Wl,--icf=all",
       ]
     }