clang: Remove -Wno-c++11-compat.

build/common.gypi

 # Copyright (c) 2012 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.
 
 # IMPORTANT:
 # Please don't directly include this file if you are building via gyp_chromium,
 # since gyp_chromium is automatically forcing its inclusion.
 {
   # Variables expected to be overriden on the GYP command line (-D) or by
   # ~/.gyp/include.gypi.
@@ skipping 2085 matching lines @@
               # Clang spots more unused functions.
               '-Wno-unused-function',
               # Don't die on dtoa code that uses a char as an array index.
               '-Wno-char-subscripts',
               # Especially needed for gtest macros using enum values from Mac
               # system headers.
               # TODO(pkasting): In C++11 this is legal, so this should be
               # removed when we change to that.  (This is also why we don't
               # bother fixing all these cases today.)
               '-Wno-unnamed-type-template-args',
-              # WebKit uses nullptr in a legit way, other that that this warning
-              # doesn't fire.
-              '-Wno-c++11-compat',
               # This (rightyfully) complains about 'override', which we use
               # heavily.
               '-Wno-c++11-extensions',
 
               # Warns on switches on enums that cover all enum values but
               # also contain a default: branch. Chrome is full of that.
               '-Wno-covered-switch-default',
 
               # TODO(thakis): Reenable once http://webk.it/83920 is fixed.
               '-Wno-literal-conversion',
@@ skipping 394 matching lines @@
               'GCC_VERSION': 'com.apple.compilers.llvm.clang.1_0',
               'WARNING_CFLAGS': [
                 '-Wheader-hygiene',
                 # Don't die on dtoa code that uses a char as an array index.
                 # This is required solely for base/third_party/dmg_fp/dtoa.cc.
                 '-Wno-char-subscripts',
                 # Clang spots more unused functions.
                 '-Wno-unused-function',
                 # See comments on this flag higher up in this file.
                 '-Wno-unnamed-type-template-args',
-                # WebKit uses nullptr in a legit way, other that that this
-                # warning doesn't fire.
-                '-Wno-c++0x-compat',
                 # This (rightyfully) complains about 'override', which we use
                 # heavily.
                 '-Wno-c++11-extensions',
 
                 # Warns on switches on enums that cover all enum values but
                 # also contain a default: branch. Chrome is full of that.
                 '-Wno-covered-switch-default',
 
                 # TODO(thakis): Reenable once http://webk.it/83920 is fixed.
                 '-Wno-literal-conversion',
@@ skipping 472 matching lines @@
     # settings in target dicts.  SYMROOT is a special case, because many other
     # Xcode variables depend on it, including variables such as
     # PROJECT_DERIVED_FILE_DIR.  When a source group corresponding to something
     # like PROJECT_DERIVED_FILE_DIR is added to a project, in order for the
     # files to appear (when present) in the UI as actual files and not red
     # red "missing file" proxies, the correct path to PROJECT_DERIVED_FILE_DIR,
     # and therefore SYMROOT, needs to be set at the project level.
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
 }