Remove -Wno-enum-compare-switch flag

This CL is part of
https://chromium-review.googlesource.com/c/chromium/src/+/1286016

This CL was uploaded by git cl split.

R=dpranke@chromium.org

Bug: 753973
Change-Id: Ie5be77df8c85eff62c9e0bb7bee0e20bbc4c367a
Reviewed-on: https://chromium-review.googlesource.com/c/1288172Reviewed-by: Nico Weber <thakis@chromium.org>
Commit-Queue: Takuto Ikuta <tikuta@chromium.org>
Cr-Commit-Position: refs/heads/master@{#601397}

build/config/compiler/BUILD.gn

@@ -1497,9 +1497,6 @@ config("default_warnings") {
         # Flags NaCl (Clang 3.7) and Xcode 9.2 (Clang clang-900.0.39.2) do not
         # recognize.
         cflags += [
-          # TODO(thakis): https://crbug.com/753973
-          "-Wno-enum-compare-switch",
-
           # Ignore warnings about MSVC optimization pragmas.
           # TODO(thakis): Only for no_chromium_code? http://crbug.com/505314
           "-Wno-ignored-pragma-optimize",

third_party/android_protobuf/BUILD.gn

@@ -5,6 +5,7 @@
 if (current_toolchain == host_toolchain) {
   config("android_protoc_warnings") {
     cflags = [
+      "-Wno-enum-compare-switch",
       "-Wno-null-conversion",
       "-Wno-tautological-undefined-compare",
       "-Wno-unused-function",