gn: make some warning flags match gyp more closely

breakpad/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 config("tools_config") {
   include_dirs = [ "src", "src/third_party" ]
   if (is_android) {
     defines = [ "__ANDROID__" ]
   }
   if (is_clang) {
@@ skipping 127 matching lines @@
       "src/processor/basic_code_modules.h",
       "src/processor/logging.cc",
       "src/processor/logging.h",
       "src/processor/minidump.cc",
       "src/processor/minidump_dump.cc",
       "src/processor/pathname_stripper.cc",
       "src/processor/pathname_stripper.h",
     ]
 
     configs += [ ":tools_config" ]
+
+    # There are some warnings in this code.
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [ "//build/config/compiler:no_chromium_code" ]
   }
 }
 
 # Mac --------------------------------------------------------------------------
 
 if (current_toolchain == host_toolchain && is_mac) {
   # TODO(GYP) This should be only 64-bit on Mac. From .gypi:
   # Like ld, dump_syms needs to operate on enough data that it may
   # actually need to be able to address more than 4GB. Use x86_64.
   # Don't worry! An x86_64 dump_syms is perfectly able to dump
@@ skipping 313 matching lines @@
       "src/processor/pathname_stripper.cc",
       "src/processor/pathname_stripper.h",
     ]
 
     include_dirs = [
       "src",
       "src/client",
       "src/third_party/linux/include",
       ".",
     ]
+
+    # There are some warnings in this code.
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [ "//build/config/compiler:no_chromium_code" ]
   }
 
   test("breakpad_unittests") {
     sources = [
       "linux/breakpad_googletest_includes.h",
       "src/client/linux/handler/exception_handler_unittest.cc",
       "src/client/linux/minidump_writer/cpu_set_unittest.cc",
       "src/client/linux/minidump_writer/directory_reader_unittest.cc",
       "src/client/linux/minidump_writer/line_reader_unittest.cc",
       "src/client/linux/minidump_writer/linux_core_dumper_unittest.cc",
@@ skipping 192 matching lines @@
       "src/client/windows/handler/exception_handler.h",
       "src/common/windows/guid_string.cc",
       "src/common/windows/guid_string.h",
       "src/google_breakpad/common/minidump_format.h",
       "src/client/windows/crash_generation/minidump_generator.cc",
       "src/client/windows/crash_generation/minidump_generator.h",
       "src/common/windows/string_utils-inl.h",
     ]
   }
 }